dig-store 0.5.1

The DIG Network DataLayer store manager: composes the on-chain CHIP-0035 DataLayer anchor (dig-merkle) with the off-chain .dig capsule format into one store abstraction — create/modify/melt a store coin (unsigned SpendBundles), a comprehensive on-chain getter surface, and the size proof that gates downloads on the on-chain-anchored size.
Documentation

dig-store

The DIG Network DataLayer store manager. A store is the composition of two planes:

  • an on-chain anchor — a CHIP-0035 DataLayer singleton (owned by dig-merkle) whose metadata carries the .dig merkle root plus label / description / size bucket / program hash; and
  • an off-chain data plane — the .dig capsule format (owned by dig-capsule).

dig-store composes the two into ONE curated abstraction with three concerns:

  1. Lifecycle — a store is a coin that gets SPENT: create_store, modify_store, melt_store. Each returns an UNSIGNED spend; the wallet-backend / node signs + broadcasts. dig-store never holds a key, never signs, never dials the network.
  2. Size proof — a store anchors its .dig SIZE on chain as a power-of-2 SizeBucket (1 MB..1 GB). Before keeping a downloaded .dig, a client runs SizeProof::verify; a real size that does not match the anchored bucket is discarded — a dig-node must not store or serve a size-mismatched capsule.
  3. Getters — a comprehensive, chain-proven read surface over every on-chain property (tip, ordered root history, latest root, owner DID, and the label / description / size / program-hash metadata).

The lifecycle + getters compose dig-merkle (the CHIP-0035 DataLayer coin expert) over the canonical dig-chainsource-interface chain reader; the URN scheme delegates to dig-urn-protocol. dig-store adds no on-chain bytes and re-exports the coin/identity types verbatim, so a consumer depends on ONE canonical shape.

See SPEC.md for the normative contract.

Off-chain capsule getters — deferred (issue #1247)

open_capsule / get_capsule_identity are not in this version: dig-capsule 0.4.0 exposes no lightweight bytes → (store_id, root_hash) reader (the only path is the full wasmtime serve runtime). They land once dig-capsule ships a Capsule::from_module_bytes reader (release-first). The download-gating size proof needs no capsule open and is complete now. See SPEC §11.

Install

[dependencies]
dig-store = "0.2"

License

Licensed under either of Apache-2.0 or MIT at your option.