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 0xbe711332e6872f9be7fd0cbec87e261e76830bf441d4a26cb92b9659fa48f2ac. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00cafa46-38a9-47ac-89e1-27440dc1c7a7.json and https://artists.proofprofile.net/proofs/artist/00cafa46-38a9-47ac-89e1-27440dc1c7a7.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 0xd1b979809f6f2d63c705cc8d3fcd16c2f2227f576e7054b5bd6f3b9525e5c270. 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/QZGLM2276755.
Mis Mejores Canciones - Víctor Hugo Ayala
Colección Doble Platino: Víctor Hugo Ayala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a4064aa4188f7a3b888b95fa38face9937afee7de992d9ac93e0fb21a1834f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/COFC10505003.
Vintage World No. 120 - LP: Que Pare La Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9407a578fdb7d95dfe2605709070347bcaee7abe05501d2179cd3a2dc2dd8ddf. 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/COF019501847.
32 Grandes Boleros, Bambucos y Canciones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5441a32eb88584d5eee609b8ba3c1d2bc6356ea71d968c6da7912aad0dccbc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/COF018900684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4738a17fb9801aeffcc0cbe4a353d91d5dcf4bdd6110b7e1537568be18b526c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:47:18Z), 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/COF010501496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846bb4611a511f9c67fe60f0029646477057b3ee228e2f557ca94eb0e5920c9d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/COF019601289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab2359e944badc6817794af4e2423f4be60ebca9c4201bb9169d66ca66520f0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/COF019601290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd242155c439eb149308990ee4fd2f4fb009a21a8a0979024d6c108e7984c4836. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QMBZ91750188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6f47cc5ac90c13fa6caf80061b4e84559218d0d0e4bd4e7865e7890f4132cf. 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/CA5KR1810609.
La Discoteca del Siglo: Historia del Bolero en el Siglo Xx, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7def939157cd461d0e2aad57a80c6a9d11f72f231e2c5b15f54516f83e0c34ea. 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/COF018900688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb5fce20f7510a036f6175572f6e3b0f8b7be842f8f7147bf98540966e5204. 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/COFC10071005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b7d85b26ba78022890adca8523e9540c5ef64bb90873538df361b8b4c0a93f. 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/QMFME1561370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc920321b85591a9457a76442edae075b5c8b235017d00743a1c3173e53fa60. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA61590482.