{
"checksum": "xxHash3-64, 8 bytes big-endian, computed on uncompressed input",
"compression": "LZ4 block format (NOT frame)",
"constructed_vectors": [
{
"name": "envelope_ratio_product_wraps_32_bits",
"description": "canonical bin envelope whose compressed_data is 4294968 B = ceil(2^32/1000), the first size at which 1000 * compressed_size overflows unsigned 32 bits. original_size is larger than compressed_size and well inside the 1000:1 bound, so readers MUST accept it and return the constructed input. A reader that computes the product in 32-bit width gets 704 instead (signed or unsigned wrap alike) and rejects it as a ratio bomb; so does one that rejects on 32-bit overflow, and a 32-bit one that skips the product when original_size <= compressed_size. A pointer-width product passes it on a 64-bit host, so a pass there proves nothing about a 32-bit target. spec/wire-format.md#decompression-bomb-detection says which implementations must run it and on which targets.",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 8523079,
"compressed_size": 4294968,
"envelope_size": 4295001,
"checksum_hex": "6d8571f174e2b890",
"envelope_construction": [
{
"hex": "94c600418938ff",
"count": 1
},
{
"hex": "ff",
"count": 16711
},
{
"hex": "d7c600820d42",
"count": 1
},
{
"hex": "00",
"count": 4261530
},
{
"hex": "0100",
"count": 1
},
{
"hex": "ff",
"count": 16711
},
{
"hex": "d7500000000000986dcc8571ccf174cce2ccb8cc90ce00820d47a76d73677061636b",
"count": 1
}
],
"input_construction": [
{
"hex": "c600820d42",
"count": 1
},
{
"hex": "00",
"count": 8523074
}
]
}
],
"construction_note": "constructed_vectors are too large to pin as hex. To build envelope or input bytes, repeat each segment's hex `count` times and concatenate the segments in order (the same list form as interop-v2.json). Readers MUST decode the constructed envelope to the constructed input.",
"envelope_format": "MessagePack positional array (rmp_serde::to_vec): [compressed_data, checksum, original_size, format]. Vectors without an 'envelope_encoding' field use the legacy array-of-integers encoding for compressed_data and are retained forever as legacy-read proof; their '*_bin' twins use msgpack bin (canonical for protocol 1.1+ writers). checksum always encodes as an array of 8 integers. Normative rules: spec/wire-format.md, 'Byte Layout' / 'Encoding compatibility'.",
"generator": "six original legacy vectors: cachekit-core v0.2.0; width_boundary_bin16 legacy vector: cachekit-core v0.5.0 real writer; *_bin vectors: tools/wire-format-reference.py generate - deterministic re-encode of the legacy fields, byte-verified against rmp-serde 1.3.1 + serde_bytes 0.11.19 output (LAB-783); constructed_vectors: tools/wire-format-reference.py generate - stdlib construction, checksum by xxhash 4.0.1 (xxHash 0.8.3); reject_vectors: tools/wire-format-reference.py generate - canonical bin re-encode of legacy base fields with one check broken",
"limits": {
"max_compressed_size": 536870912,
"max_compression_ratio": 1000,
"max_uncompressed_size": 536870912
},
"reject_vectors": [
{
"name": "reject_original_size_over_cap",
"description": "original_size 536870913 B, one byte over the 512 MiB max_uncompressed_size, with a 1000 B compressed_data that is not a valid LZ4 block (a literal-length extension that never ends). Readers MUST reject it. An SDK test asserts the size-cap error, and that the read's allocation high-water stayed below original_size (spec/wire-format.md#reject-vectors). The reference reader rejects it at Retrieve Flow step 4. A reader without step 4 rejects it at step 5, by the ratio bound. One that decompresses first with a strict decoder and lets its error propagate never raises the size-cap error, and one that allocates an output sized from original_size first fails the allocation bound.",
"reject_step": 4,
"derived_from": "simple_string",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 536870913,
"compressed_size": 1000,
"envelope_hex": "94c503e8f0ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff986dcc8a34ccb63a3c52ccd3ce20000001a76d73677061636b",
"envelope_size": 1029
},
{
"name": "reject_original_size_wraps_u32",
"description": "simple_string's compressed_data and checksum with original_size 2^32 + 16 = 4294967312 B, encoded as msgpack uint64. Readers MUST reject it before decompression. An SDK test asserts the size-cap error, or a Retrieve Flow step-2 error from a range-checked decode into a narrower type; never a length or checksum error. The reference reader rejects it at step 4. A reader that truncates original_size to its low 32 bits reads 16 and accepts it; one that joins the two 32-bit halves reads 17 and rejects it only with a length error.",
"reject_step": 4,
"derived_from": "simple_string",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 4294967312,
"compressed_size": 18,
"envelope_hex": "94c412f00168656c6c6f2c2063616368656b697421986dcc8a34ccb63a3c52ccd3cf0000000100000010a76d73677061636b",
"envelope_size": 50
},
{
"name": "reject_zero_length_compressed_data",
"description": "empty compressed_data with original_size 0 and the checksum of the empty input. Readers MUST reject it. An SDK test asserts the zero-length error; the ratio bound cannot raise it, because 0 <= 1000 * 0. The reference reader rejects it at Retrieve Flow step 5. A reader without the zero-length check hands an empty block to its LZ4 decoder, which rejects it at step 6 if it refuses an empty block, as liblz4 does, and accepts it if it decodes one to empty output.",
"reject_step": 5,
"derived_from": "empty",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 0,
"compressed_size": 0,
"envelope_hex": "94c400982d06cc800538ccd3cc94ccc200a76d73677061636b",
"envelope_size": 25
},
{
"name": "reject_ratio_bomb",
"description": "original_size 1000001 B = 1000 * 1000 + 1, one byte past the 1000:1 bound, with a 1000 B compressed_data that is not a valid LZ4 block. Readers MUST reject it. An SDK test asserts the ratio error, and that the read's allocation high-water stayed below original_size (spec/wire-format.md#reject-vectors). The reference reader rejects it at Retrieve Flow step 5. A reader without the ratio check, or one that decompresses first with a strict decoder and lets its error propagate, never raises the ratio error, and one that allocates an output sized from original_size first fails the allocation bound.",
"reject_step": 5,
"derived_from": "simple_string",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 1000001,
"compressed_size": 1000,
"envelope_hex": "94c503e8f0ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff986dcc8a34ccb63a3c52ccd3ce000f4241a76d73677061636b",
"envelope_size": 1029
},
{
"name": "reject_decompressed_length_mismatch",
"description": "simple_string's compressed_data and checksum with original_size 17 B, one more than the 16 B the block decodes to, and inside every size and ratio bound. Readers MUST reject it. An SDK test asserts a length error, at Retrieve Flow step 6 or step 9, and not a checksum error. The reference reader's decoder (tools/wire-format-reference.py) rejects any output length other than original_size, at step 6. A reader whose decoder returns a shorter output without error, as liblz4 does, rejects it at step 9; both conform. A reader with neither check accepts it, because the checksum matches the decoded bytes. A reader that zero-pads the output to original_size fails the checksum, or accepts it if it checksums before padding; neither is a length error.",
"reject_step": 6,
"derived_from": "simple_string",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 17,
"compressed_size": 18,
"envelope_hex": "94c412f00168656c6c6f2c2063616368656b697421986dcc8a34ccb63a3c52ccd311a76d73677061636b",
"envelope_size": 42
},
{
"name": "reject_checksum_mismatch",
"description": "simple_string's envelope with the first and last checksum bytes flipped (xor 0x01). Readers MUST reject it; an SDK test asserts the rejection. The reference reader rejects it at Retrieve Flow step 8. A reader without step 8 accepts it.",
"reject_step": 8,
"derived_from": "simple_string",
"format": "msgpack",
"envelope_encoding": "bin",
"original_size": 16,
"compressed_size": 18,
"envelope_hex": "94c412f00168656c6c6f2c2063616368656b697421986ccc8a34ccb63a3c52ccd210a76d73677061636b",
"envelope_size": 42
}
],
"vectors": [
{
"description": "Zero-length payload",
"envelope_hex": "949100982d06cc800538ccd3cc94ccc200a76d73677061636b",
"envelope_size": 25,
"format": "msgpack",
"input_hex": "",
"input_size": 0,
"name": "empty"
},
{
"description": "Short ASCII text",
"envelope_hex": "94dc0012ccf00168656c6c6f2c2063616368656b697421986dcc8a34ccb63a3c52ccd310a76d73677061636b",
"envelope_size": 44,
"format": "msgpack",
"input_hex": "68656c6c6f2c2063616368656b697421",
"input_size": 16,
"name": "simple_string"
},
{
"description": "64 bytes derived from pi (deterministic, low compressibility)",
"envelope_hex": "94dc0042ccf031243f6acc88cc85cca308ccd31319cc8a2e03707344cca409382229cc9f31ccd0082eccfacc98ccec4e6ccc89452821cce638ccd01377ccbe5466cccf34cce90c6cccc0ccac29ccb7ccc97c50ccdd3fcc84ccd5ccb5ccb5470917982d016e0411ccedcc9e3440a76d73677061636b",
"envelope_size": 117,
"format": "msgpack",
"input_hex": "243f6a8885a308d313198a2e03707344a4093822299f31d0082efa98ec4e6c89452821e638d01377be5466cf34e90c6cc0ac29b7c97c50dd3f84d5b5b5470917",
"input_size": 64,
"name": "binary_data"
},
{
"description": "1024 bytes of repeated 'A' (high compression ratio)",
"envelope_hex": "949f1f410100ccffccffccffcce960414141414141984d35ccad08cce9ccd77c0dcd0400a76d73677061636b",
"envelope_size": 44,
"format": "msgpack",
"input_hex": "41414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141",
"input_size": 1024,
"name": "large_compressible"
},
{
"description": "JSON-like payload (common real-world pattern)",
"envelope_hex": "94dc004cccf03b7b22757365725f6964223a31323334352c226e616d65223a22416c696365222c22656d61696c223a22616c696365406578616d706c652e636f6d222c22616374697665223a747275657d98cc87673661cc9c4bcca8204aa76d73677061636b",
"envelope_size": 102,
"format": "msgpack",
"input_hex": "7b22757365725f6964223a31323334352c226e616d65223a22416c696365222c22656d61696c223a22616c696365406578616d706c652e636f6d222c22616374697665223a747275657d",
"input_size": 74,
"name": "json_like"
},
{
"description": "Single byte 0xFF (minimum non-empty payload)",
"envelope_hex": "949210ccff98ccd6ccbcccec3c6b29ccd72e01a76d73677061636b",
"envelope_size": 27,
"format": "msgpack",
"input_hex": "ff",
"input_size": 1,
"name": "single_byte"
},
{
"description": "300-byte deterministic xorshift64* incompressible payload (seed 0x9e3779b97f4a7c15, multiplier 0x2545f4914f6cdd1d; little-endian u64 output truncated to 300 bytes; real writer bin16 width boundary)",
"envelope_hex": "94dc012fccf0ccff1ecc9925cc9acc8ccca2ccd103745ecccbcc8eccab39ccf370ccdd1ecca10e523348cc977d244dcc80cca41841cc8f54ccbc38cc97142004ccd6ccfbccb5ccf12e5acc91cc9c5528733454ccc2ccc652cce2ccfbcc82cccccce2ccebccff51ccd6ccadccbfcca8cc8d011a0627cca416cc9fcca54a5ecc9a66ccdf61cc82cce87571ccbd25ccf7571a68cc8e1221ccd257cca97230cc906acca41ccca1cce6ccf76dcca7cce1ccfc0ecc9ecc83cc96324bcc8720ccef20cce3ccd6ccd77a713bcc951eccd8ccfa38ccfc6bccf8ccf6ccca4177102dcca9211f26ccf3ccba2c20cca2ccf0ccd1ccaaccd5095b302838192b5922226acca7027c3c13cce03268cc90ccd1ccaaccecccf2ccce1c442445cc916a26cc8c72cce4cced381a3b69cc9accc8ccb0cca9cc935614ccd4ccdccc83ccd6ccde44ccb1462747ccf7ccf8711fcc9a27234fcca6cc9c3c5f5ccc8319ccc6ccb239cc9d2dccde6a290831cc86cca46b3accb03b1ecca8ccdbccb4cc98ccdecce5ccc1cc97ccbe39ccfdccb8ccf1cccb324b542bcca01a6131ccbcccd67540273accc90fccd9164941ccd42669404a5dcc85ccefccc6cc9f2f2fccde1c78ccd2ccef404accf205ccefccd96f98cc8ecccfccde50524bcc886dcd012ca76d73677061636b",
"envelope_size": 478,
"format": "msgpack",
"input_hex": "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",
"input_size": 300,
"name": "width_boundary_bin16"
},
{
"description": "bin-encoded twin of 'empty': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
"envelope_hex": "94c40100982d06cc800538ccd3cc94ccc200a76d73677061636b",
"envelope_size": 26,
"format": "msgpack",
"input_hex": "",
"input_size": 0,
"name": "empty_bin",
"envelope_encoding": "bin",
"derived_from": "empty"
},
{
"description": "bin-encoded twin of 'simple_string': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
"envelope_hex": "94c412f00168656c6c6f2c2063616368656b697421986dcc8a34ccb63a3c52ccd310a76d73677061636b",
"envelope_size": 42,
"format": "msgpack",
"input_hex": "68656c6c6f2c2063616368656b697421",
"input_size": 16,
"name": "simple_string_bin",
"envelope_encoding": "bin",
"derived_from": "simple_string"
},
{
"description": "bin-encoded twin of 'binary_data': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
"envelope_hex": "94c442f031243f6a8885a308d313198a2e03707344a4093822299f31d0082efa98ec4e6c89452821e638d01377be5466cf34e90c6cc0ac29b7c97c50dd3f84d5b5b5470917982d016e0411ccedcc9e3440a76d73677061636b",
"envelope_size": 89,
"format": "msgpack",
"input_hex": "243f6a8885a308d313198a2e03707344a4093822299f31d0082efa98ec4e6c89452821e638d01377be5466cf34e90c6cc0ac29b7c97c50dd3f84d5b5b5470917",
"input_size": 64,
"name": "binary_data_bin",
"envelope_encoding": "bin",
"derived_from": "binary_data"
},
{
"description": "bin-encoded twin of 'large_compressible': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
"envelope_hex": "94c40f1f410100ffffffe960414141414141984d35ccad08cce9ccd77c0dcd0400a76d73677061636b",
"envelope_size": 41,
"format": "msgpack",
"input_hex": "41414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141",
"input_size": 1024,
"name": "large_compressible_bin",
"envelope_encoding": "bin",
"derived_from": "large_compressible"
},
{
"description": "bin-encoded twin of 'json_like': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
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"format": "msgpack",
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"input_size": 74,
"name": "json_like_bin",
"envelope_encoding": "bin",
"derived_from": "json_like"
},
{
"description": "bin-encoded twin of 'single_byte': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
"envelope_hex": "94c40210ff98ccd6ccbcccec3c6b29ccd72e01a76d73677061636b",
"envelope_size": 27,
"format": "msgpack",
"input_hex": "ff",
"input_size": 1,
"name": "single_byte_bin",
"envelope_encoding": "bin",
"derived_from": "single_byte"
},
{
"description": "bin-encoded twin of 'width_boundary_bin16': identical fields, compressed_data as msgpack bin (canonical writer encoding, protocol 1.1+)",
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"format": "msgpack",
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"input_size": 300,
"name": "width_boundary_bin16_bin",
"envelope_encoding": "bin",
"derived_from": "width_boundary_bin16"
}
],
"version": "1.3.0"
}