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 0x945a74daef8a946b44b520d395f3bc7c9273f8234d60bed194243f02e3819061. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b452ecef-7edb-4065-96bd-909e635bc46f.json and https://artists.proofprofile.net/proofs/artist/b452ecef-7edb-4065-96bd-909e635bc46f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Baile de la Vida (Tema de la Serie de TV "Un Gallo para Esculapio") (feat. Sen Dog)
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 0xf32661f0737ea5642c1387c3f9ff81dfb3056fed238e5ff29b17556b346396de. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QMY4J2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0e1ee20c1714ef1c8ffda08762fa24372a872fe0a2b24d805234360332a7d7. 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/QMY4J2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac635969166b8f1dc9423cc5b57494441fbba8f3213d441df7f1f5f4587e93c3. 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/QMY4J2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957f44ca36b6c5824d624c337668c97f59e306d534c2f7ba17887a418757eb85. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QMY4J2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aedb3d8cbb94736cb5689a9baef6cc3bb3ff164bbf1bc140417a2ae456d88c3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMY4J2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b120bb5facc5d13982cd6e1afb8fdaf6b1dd6bda2169d9e3ae984b0f3b1a4b. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/QMY4J2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5089b1379689442ccd7f7829b7465a1f28e88ccb063e8e44bcf3d322de484fc9. 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/QMY4J2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac9c2eb000b5d097602a9cac014b9c2dfd20b388788de2f6d343648355ee954. 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/QMY4J2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb316c37985c3dc899414696a9e76a1c7d90b6f6ce612bfd20cda29496f066a7e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QMY4J2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86835c09faf0facfb46ac445db2c6f883d82aeb8e340ab1f7d4a68c815136f9. 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/QMY4J2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a676ce985d5875a872d53be698c1da1bde792eb3e2f513221f40db32bfabef. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QMY4J2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6852397cdc70805ba4ff30889f77f831d127fc38ccc6efcd3a15c5130e0ae4b9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMY4J2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b1a74e20171aab4e4b0106b698184fa8c399756d6cce27aab7d1b75aa7b45. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QMY4J2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa43fbd3f88751c6f1f97e9a1270edf6ff50ba09d6a4e26139f14a5b3e5ece3. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QMY4J2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d1f5a71d90f8b373a0fb27100af3ded623e0d4af48ae99232ba0a0e05bbdc9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMY4J2400042.