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 0x7b324b899c1f7f1992a76f57ffd7f710eee2289206348506683d52beb36eb830. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64da8692-3718-4d9c-a1d8-78d1eab0d62d.json and https://artists.proofprofile.net/proofs/artist/64da8692-3718-4d9c-a1d8-78d1eab0d62d.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 0x2a4f57a98d9d29d090a7f082ee3cbfbac9bdc84d91e09b30da3793aa562fecda. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/ES6172121005.
Mujer delgada sobre fondo gris (Jairo Beltrami Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ab0e0f8ef63208664e0003536be0aed4e4d18fbb87f7a02d923ac8017061a8. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ES6172323094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96373e39d73278ec4d1a88e59736d68465f7f3c2e62f642d4131d0191b7dbe12. 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/ES6172323070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ab0e0f8ef63208664e0003536be0aed4e4d18fbb87f7a02d923ac8017061a8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES6172323094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470162eaa679a1a46fd8bf0ba79072d060c34a194676f403f976c88551e5b512. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES6172323114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23564cafa80ca1ddfa2878270c9ad5bd554c57888ee66a560a5d1f3e7abbe9f8. 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/ES6172323115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf952ee47b34411e1b48919f93bfbd4d3be2fb0f6cca1b86cdd842478cc112b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES6172323116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbe54a4f0ce0c681734e112194c370c4d1cd0c8943b7fe0ee3375f61c5c2f0c. 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/ES6172323066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca7a697f29b1ec84cd89783917fa1a6bc1c384c5fbaf13b12476ee764ff1b8f. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ES6172323117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680ad287130fe8b8bc0cecaf87388f06101a53ad4feb0804cd990c9b6fa00a3b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ES6172323118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf1bae2b8b6c9b74db09286c2d7f035601df2379513697cc12929a230029fc. 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/ES6172323119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaa5e45315e15fb9044a3f43c22b1030817b6c200fe85e8231a4a3c743bd260. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES6172323120.
Cada vez que te asomas a la ventana (Dramatizada)
El mejor gol de Cunningham (Deconstruida)
El mejor gol de Cunningham - Deconstruida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0fd41c3b58fc4c45df9725e07297377b66389a50757e7909d743dd8dc6828e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES6172424154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde06db460f07896d3aeae3a9150003204ed960d848aabf7d3fdeaa742ad8f00c. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ES6172525056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb31dd647a8c0eae36a9d0dc34aca5476f34e448497485e1f46a756d2a4fee8. 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/ES6172525067.