contracts-acta

Soroban smart contracts for the ACTA identity and Verifiable Credential infrastructure on Stellar.

Latest release: vc-vault v0.3.0

---

Contracts

did-stellar-registry

On-chain registry for the did:stellar decentralized identifier method (v0.1). Stores the authoritative DidRecord for each DID on Stellar, readable directly from RPC without an indexer.

Function	Description
register	Create a new DID
update	Replace the full DID record (optimistic concurrency)
transfer_controller	Transfer control to a different Stellar account
deactivate	Permanently deactivate a DID
get	Read-only: return the current DidRecord

See contracts/did-stellar-registry/README.md for the full ABI, authorization model, and error codes.

---

vc-vault

Per-holder vault for Verifiable Credentials on Stellar. Manages VC storage, issuance status, revocation, issuer authorization, and fee collection in USDC. Contract admin is set at deploy time via __constructor.

Category	Functions
Admin	nominate_admin, accept_contract_admin, upgrade, version, fee_*
Vault	create_vault, create_sponsored_vault, set_vault_admin, authorize_issuer, authorize_issuers, revoke_issuer, revoke_vault, list_authorized_issuers, list_denied_issuers, authorized_issuer_count, denied_issuer_count
Credentials	issue, batch_issue, issue_linked, revoke, verify_vc, get_vc, list_vc_ids, vc_count, push

See contracts/vc-vault/README.md for the full ABI, authorization model, and error codes.

---

Testnet Deployments

Contract	Contract ID
did-stellar-registry	CB7ATU7SF5QUKJMSULJDJVWJZVDXC23HTZX6NFUDTSFPVT6MA575NNZJ
vc-vault	CATL4IDH7XXPDC2UHSEX2GP45PPBVDFSKUDTKCSQICDOJVDLYNKISXFH

Network: Stellar Testnet (Test SDF Network ; September 2015)
Full deployment record: docs/deployments/testnet.md

---

Build

# Build a specific contract
./scripts/build.sh vc-vault
./scripts/build.sh did-stellar-registry

Output files:

• target/wasm32v1-none/release/<contract>.wasm
• target/wasm32v1-none/release/<contract>.optimized.wasm

---

Deploy

# Prerequisites: stellar-cli installed, network configured, key generated
./scripts/deploy.sh <package> <network> <source-account>

# Examples
./scripts/deploy.sh did-stellar-registry testnet acta_deployer
./scripts/deploy.sh vc-vault testnet acta_deployer

Record the resulting contract ID in docs/deployments/<network>.md.

---

Specification

The did:stellar v0.1 method specification lives at docs/did-spec/did-stellar-v0.1.md. It covers:

• DID syntax and identifier generation
• On-chain data model (DidRecord)
• Contract operations and mutation semantics
• DID Document construction rules
• Proof of control protocol
• Normative test vectors

---

Tests

cargo test -p vc-vault-contract          # 127 tests
cargo test -p did-stellar-registry       # 56 tests

---

License

Licensed under the Apache License 2.0.