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 0xaf8fe795e666c3b2966424f3941111e48f2d9d2c90ed15c1ba9aa78765f3de50. 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/207e35db-fdef-43cc-b472-3db824367332.json and https://artists.proofprofile.net/proofs/artist/207e35db-fdef-43cc-b472-3db824367332.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(Miedo a perderme y perderte después) - Bésame mucho
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 0x7fea47fb27dc36976170f4672369d5a664760f6070bfc2210e5749d32603de62. 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/DEH742411649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be1eaae1a831ce29d951cc13f228ffcfb5ed139532e8a8d7f1365f969f93929. 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/US3DF2516305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549dd295b44c849c03b0831d1b7ef6eb002822496e4d91b2ad07c70eb86b3566. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US3DF2567156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c66546dd2129d7ed3576367c8af6091453342dc7b73c6c8a3b3f8fd16f956ec. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/US3DF2583323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965fb136227defd4c5d84d58c32140dd0c04b2b621632849f92f3fd17400c230. 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/DEH742523436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f44ea475dd8c5d38ed6b86387163e3e0c8b9943c96b4bbe69d85fd10ee2ee1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/DEH742525944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6932a5bfb7a4a40c47f04df1125511d0cc2a8e56f8d6645d8d547e9a5e9f63. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/DEH742528907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17708cc0178bfcafb9dc16713b2014f3c8c9c91f0517b3ff0a0a2cf00a156a60. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEH742529304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ff9a63320c490e1ef08bdc1af22b08ed2b28ca9c22c6170354a16d6d02ad28. 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/USANG2408627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc749e32bcedc48b8d8d61380a063a34f16bc12cc0b21b50bd0eec3a6142216be. 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/DEH742424123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315e93e563c02e3b32d62a3f6547007bd388583ea3ee466c4a6d7b973f201156. 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/US3DF2431520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0307015d02005a00115ce2fc09aed3d9f63e29175c6c3f5b9cf8ab9b3f1b38. 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/DEH742407073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcf8643e68fa1c47dd8e0ad37598a0978be905c7c7dfbbf1fe733610ae95cbd. 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/QM3DF2270049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ed04d7e59e110b0639215efa57cb90fe4ca0a56e5f6d2bb3627a1412282af3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US3DF2486860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1296d36a3770c8a720ce8a7c920e09dd257f80fac5733ff04edac7bd4438e65. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ESA012217312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eadac567dc5322b7c6b51595eb9226bbc7514430760ab94a1a7bbc4c265cd3. 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/US3DF2472066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f262d1c542ff621908d883125657b266c7a45542d112dccffa99a7a17381565. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH742410292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec560e16a9284414a53dbd2b3b85c80ac4337c8486b7b9ad3c63df074848125. 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/US3DF2556344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fc4b054a6e72b5f560f30005e7ba2898ef869f69929cb54ccfb17d2e0807d4. 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/NL1LE2403647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eab65b404e51bc53c36910bac78a1bbe01c27a20c121b1a02fb7e632d75c5e. 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/NL1LE2403582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c93805a1029d094e69b6b4990b7e1d93b9be56d89a94a8bffd68712bf6f0174. 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/UKZGC2501340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec521ea4dc2fd35024118ef031ff96a675413a71d4189b495d865abcab47b54. 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/UKZGC2501343.