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 0xa6fda4360159446f412af9049e4184729005d43a617f4c9102fb11107ab2ebbd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1eb77017-861d-4a28-9cd9-356bbcb2f9da.json and https://artists.proofprofile.net/proofs/artist/1eb77017-861d-4a28-9cd9-356bbcb2f9da.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 0xa8be81c392db168f67a83a6ad94baf2b8795873427f71f4a02ff14e7ddfb6081. 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/USHM91905199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173e8fe9b109693adbd26b4c3e0e1ccb1887d276242eccbe87a1e4d2850db29a. 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/QMEU32028205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286d8381a6f1cb94193d6a4148c2a455e8c492db5b91c067a08a52d4b8b19bea. 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/USDY41888946.
De Este Lado (En Vivo Desde Culiacán, Sinaloa)
De Este Lado - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acf0cf880724df6e10116801f86fa96dd18742af0977361dc42551d2c0daae1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMEU32021163.
La Buena Vida - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c6cadb58dfd84d1164fad64f3493c1531b2ee1c3017980b662de42391575d9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMEU32021164.
Creo En Mí - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cbf461b7f5baeb8cb488c6a54dd3a1c3fcadd7d3fa1a7d904ab6dea1b738b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMEU32021165.
Tanto Estrés - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43831546e26316ee3b3d76364ff624ab4df8e1917a15022c31ab512c5508a56. 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/QMEU32021166.
El General - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f3dd27b6ae25c565fca25a9af4e4143292f0dabf6fb5d9b1afd3e81b313819. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMEU32021167.
Portón Del Sur - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3ad674e551cd5be75881e99432f4a23f0394029632e38d4e9ea99b4883ade6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMEU32021168.
Gracias - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7112701c1694b6810098da85eb013c0cf97035b605f3884f293c325d079ebb02. 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/QMEU32021169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f9ce5da194d06d1f6c36392e531489b0ed285976ac1a990c4753de306fabd4. 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/QMEU32021170.
Noche De Poker - En Vivo Desde Culiacán, Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5862a604b6aff33d1109060c58241630de5923f810a4ceba0b0189291ccf930f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMEU32021171.
A.D. Records En Vivo Desde Culiacán, Sinaloa (Segunda Edición)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddc3d25c4d590a3c0ea92aa49597b316385888b456559ea72fc91d26c9eac58. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHM91906730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d72d9caf17bcb29148e2058f4f1e2db962eee1d802c59084aa0cd02a177762a. 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/USHM91906736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c7725aa51fe12482725c3107ef1abc1293248f836a192dd016ee84bf05a413. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXA0L2300141.