chore: add cbtc to assets.json for all networks#1905
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davidrichards-da merged 6 commits intoMay 29, 2026
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Adds CBTC (BitSafe wrapped Bitcoin, CIP-56) listings for MainNet, TestNet, and DevNet. CBTC is the first wrapped Bitcoin asset on Canton Network, issued by BitSafe via a decentralized network of Attestor nodes using FROST threshold signatures. Per-network admin (dec_party) and utility registrar host are taken from the public Yaak environment files in DLC-link/api-collections-public. linkToDAR points to the public DAR folder in DLC-link/cbtc-lib. Note on assetLogo: temporarily set to the BitSafe corporate logo (https://www.bitsafe.finance/Logo.svg) because no token-specific icon URL is currently hosted publicly. Happy to update once a CBTC icon is published. Sources: - https://github.com/DLC-link/api-collections-public - https://github.com/DLC-link/cbtc-lib/tree/main/cbtc-dars/dars/cbtc - https://www.canton.network/blog/cbtc-launch-on-canton-network-wrapped-bitcoin-as-institutional-grade-collateral Signed-off-by: gyorgybalazsi <gyorgy@bitsafe.finance> Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Swap assetLogo from the BitSafe corporate Logo.svg placeholder to the official CBTC token mark, taken from the BitSafe brand kit (https://www.bitsafe.finance/brand-kit). Same URL on all three networks. Signed-off-by: gyorgybalazsi <gyorgy@bitsafe.finance> Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Swap the brand-kit URL on www.bitsafe.finance for an immutable raw URL pinned to the cbtc-1.2.0 tag on DLC-link/cbtc-lib, where the brand assets are now hosted (DLC-link/cbtc-lib#55). Signed-off-by: gyorgybalazsi <gyorgy@bitsafe.finance> Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The brand assets are versioned with the cbtc crate's library version, not the DAR version. Repoint to v0.6.1 (the release that introduces the assets/ directory). Signed-off-by: gyorgybalazsi <gyorgy@bitsafe.finance> Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Adds CBTC (BitSafe wrapped Bitcoin, CIP-56) to
api-specs/assets.jsonfor MainNet, TestNet, and DevNet.CBTC is the first wrapped Bitcoin asset on Canton Network, issued by BitSafe via a decentralized network of Attestor nodes using FROST threshold signatures. Live on MainNet since 2025-08-05.
Per-network entries:
dec_party)cbtc-network::12205af3b949a04776fc48cdcc05a060f6bda2e470632935f375d1049a8546a3b262api.utilities.digitalasset.comcbtc-network::12201b1741b63e2494e4214cf0bedc3d5a224da53b3bf4d76dba468f8e97eb15508fapi.utilities.digitalasset-staging.comcbtc-network::12202a83c6f4082217c175e29bc53da5f2703ba2675778ab99217a5a881a949203ffapi.utilities.digitalasset-dev.cominstrumentId.id = "CBTC"andsymbol = "CBTC"on all three networks.Sources for the on-chain identifiers
dec_party(admin) andutility_registry_url: public Yaak environment files inDLC-link/api-collections-public(yaak.ev_u5JtmikP9v.yamlMainNet,yaak.ev_7suemqNhpB.yamlTestNet,yaak.ev_Rtc57Rr3rF.yamlDevNet).instrumentId.id = "CBTC": confirmed from CBTC transfer-factory request bodies in the same repo (yaak.rq_cdT4pzDF9X.yaml,yaak.rq_XHJhBt7YrZ.yaml).linkToDAR:DLC-link/cbtc-lib/cbtc-dars/dars/cbtc— contains the versionedcbtc-*.darfiles. Same precedent as the Amulet entry (linking to a public DAR folder rather than a docs page).assetLogo: pinned to the immutable tagcbtc-1.2.0ofDLC-link/cbtc-lib, aligned with the latest DAR version:https://raw.githubusercontent.com/DLC-link/cbtc-lib/cbtc-1.2.0/assets/cbtc-logo.svg.Notes for reviewers
linkToDARflagged in docs: adding an asset json doc #1262 points to a public folder owned by BitSafe (DLC-link is the BitSafe engineering org), containing only DARs for the CBTC token standard implementation.Test plan
python3 -c "import json; json.load(open('api-specs/assets.json'))"parses (verified locally; only 36-line insertion, no other changes)instrumentId.admin/id,symbol,registryURLs,linkToDAR,assetLogo)<utility_host>/api/token-standard/v0/registrars/<admin>/registry/🤖 Generated with Claude Code