{"copyright_id":"0x4de6dc5f9dfb53e1f2c2dd4e6cd2ff8273fa8ad8c702d7bc2d98b3df0c0a122d","name":"Juan Erlando & His Latin Band","registered_at":"2026-06-20T05:16:21Z","symbol":"NIM1522802","token_address":"0x266da98ada955c1ad9fce78175c9cce90f8ccc83","type":"artist","uuid":"9f7ac0e7-3e43-4ff3-9bfe-96ead489596f"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de6dc5f9dfb53e1f2c2dd4e6cd2ff8273fa8ad8c702d7bc2d98b3df0c0a122d. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f7ac0e7-3e43-4ff3-9bfe-96ead489596f.json and https://artists.proofprofile.net/proofs/artist/9f7ac0e7-3e43-4ff3-9bfe-96ead489596f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc083ceaa27b82bb4460e3b6ea23dd233fbb5fcce92f55e99283167aae4582063. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639706202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70f435919b2d2eb04a584a879e32cc5a9a37d654314de0484287375ca39f620. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-05T11:01:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639706204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe97564c1dcb7b5fc769b5dd200c7e5b43bd1350b09134fb45bac41899141f0. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639706218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ccad2eab221f6d0915da457b5ffc278127c363fcd3c0547b7c25a1d9893a47. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639706226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8afd7e25aa80c35504809fb7da911fc6692e4c23bcf73bce7a435c14729fb3b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639706227.
Music For Dancefloors: The KPM Music Library
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea6aa4739b8266580319a98ab8d32fa5860dca93ffcca7297efda3e1f143be8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931390734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4034996aa99362d2dd18568ef96d7490d389b65eb7bac57c393037bc3ba4b552. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG931390737.