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 0x49965a415b75af3c389ff3b469d60ae1ec3f2f584bb2ca51e5b9bcbc8b2a65ec. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5537b173-ca4f-4e17-81a8-68dad95bf67b.json and https://artists.proofprofile.net/proofs/artist/5537b173-ca4f-4e17-81a8-68dad95bf67b.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 0x979ea64dbe0c4cdb25035048e32e7c843ac4f5a6a3c9cadeff7caac2ba320f0b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/UYS051800203.
Enganchado: Hasta Que Te Conocí / Y Nos Amamos / Diosa del Sexo / Mi Mundo Tú / Déjame Intentar / Entre la Espada y la Pared / Emergencia de Amor / Telepatía
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf76f8a0dbf7209247d04a3f21c77b4dec308d2f593e1280203d96ba56dcd9b3. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:35Z), 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/UYS051800205.
Enganchado 2020: Hechizo de Luna / Que Tentación / Tu Cariñito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81524f749ebee9ff4454d55c54aa7ed5dad10294907d59e31ad51cd23012b3f9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/UYS052000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c625f35411be302289e3044280610393d61693ad6103a9924db576152b7206. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UYM123000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d279e25d607c426885910cf5ba6989e1bc8437e92a3adc68945b80608ddb58. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/UYM122401650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249dfb864e87f060f5d1b2e9fc21380d4700d08db42a200a7fcde87c5b39d265. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:35:17Z), 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/UYM122400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954491d26139c200895340ef6e47b55e3034d22df4e186c492ff8a147f6e6e61. 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/UYM121806483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91fec95d789e03a4f7f5868c2d0aef9a42ae386ef06fb939e29f9ae421ea875. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/UYM121902642.
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 0xf700bcdb857c6b7b2e8d3ee66326093ff666cbd7ae2bc08afcaa8e0b51c23783. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYS059900434.