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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510cf6277ca1d7aa8520d13a9b570f2a3036fb6fd405ce31361164357a4a9cef. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4b1b5da-2ba0-4f6f-a1c6-8839613a5e36.json and https://artists.proofprofile.net/proofs/artist/f4b1b5da-2ba0-4f6f-a1c6-8839613a5e36.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1190c280d3417e1e6e478fa0105fabf94fe3c7161c5ddef87080e160fe8caac8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARF062300377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc31379f934cf80335dae7b5be4c872aed140a01f4d017ea4ee630c2feed45e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARF062300379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7635c41bdb7f3a2beb4b1138d4b21db118a167f1330538a8debbf29029c21ea. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/ARF062300376.
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 0x15d74ecc684be90705356d8f49c831210e0eb6634c40afc9137d58fc4de3a126. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ARF062300378.
GIRA PROHIBIDA #2: ADRIÁN Y LOS DADOS NEGROS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8a9298045cb42de1a931c2a97a7f7ddf4d1da62edc1ba418ca223681e828fd. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:17:55Z), 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/ARF062300372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c576ed50fd99ae4316170ec48980698f6b9c025b9760eff3413fd8273c1cb5. 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/ARF062300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfea236d250f30cb38ea5e36255a76a791646e0901c9fdd001bc473ad85944c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARF062300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8edb9665b504a9bf66e7712b735591f5e4000836db3badca3d249f3967594f1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ARF062300387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d57382fedccf099304e2ffcea7b70042c85cde59416e94086b484f499ff8d6. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ARF062301493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23b935e9db7832b93f5cd523bf8c9dd89c13790fa5c7b989e5dcf1fdd31fd25. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF062301494.
GIRA PROHIBIDA #6: Gladys "La bomba tucumana"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf923004f3ee4ade12794e13ebe789ea96edddeaf9103b6e5cc3aa0fba95651a3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARF062301499.
GIRA PROHIBIDA #8: Jimmy Y Su Combo Negro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4c93b1e845e72e821cea4f2897a67545355f488bd25b16704468fa3e9ded9f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF062301632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b608abe5d474dd8c8ef55de6e44563811e5135e7ca7fab48a042d358b0e99. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ARF062301633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ce111d938c071fd0ea00db2a34e76c65b760c271b2ec8585d36420af6f8471. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF062301634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0216472169057da7039170bae202baa88eebcebc1222cf3e3d8394b27acfe777. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ARF062301635.