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 0xa07ab4c3c6c4f12a0ca3c6f5a7cbc28b8676f7eb7a52979cea0b81482e2d5074. 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/af53c8fa-073c-4fb9-8d07-23af353da6aa.json and https://artists.proofprofile.net/proofs/artist/af53c8fa-073c-4fb9-8d07-23af353da6aa.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 0x1546db19ceab560545eaf10602f7c6a7c1cde95f009477b22ce4fa57810d0c15. 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/QM6DC2090481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0749466a041c87e6042986941e8e29d5c41894ff153d3ad4ad16a38652488936. 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/QM6DC2090485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e541ee64fb5fab81c81459c88b9ce16b559c10b1b82ff30addfa6323d5e2c23. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM6DC2090486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094415e9fb2ebba4d5494261598fad1755de7a74fc70c8470a600e0addd5c4e1. 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/QM6DC2090487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce389b546609d2135af15dc82555d690159bcedce1699ea14f94ccae5040268. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QM6DC2097429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd97501bc6be1e65df064e85b78d253243df2cc35360b73d1a3e835c2c97a5bd. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:47:31Z), 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/USA2P2117693.
Desde Culiacán Con Servando ZL (En Vivo Desde Culiacán)
Sangoloteadito (Sones De Mi Tierra En Vivo Desde El Palenque)
Ayer Pedi (Sones De Mi Tierra En Vivo Desde El Palenque)
Como Tu Decidas (Sones De Mi Tierra En Vivo Desde El Palenque)
Como Tu Decidas - Sones De Mi Tierra En Vivo Desde El Palenque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb4d2cc3f23b42253da86ae50efbfc569bedde9aa562e6e70a832a6424eeae8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2P2201414.
Sones De Mi Tierra (En Vivo Desde El Palenque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da8384e25ceb2ca2a022651ba989ac5fb1e60b3765819bcc743307c5809e6cf. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:34:01Z), 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/USA2P2208695.
Los Aguacates (En Vivo Desde El Palenque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004aa57199f66d3a97262fb08f1ff7413f7ba3c7dd2e0ccbfc97f12a75d395b2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA2P2208693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9554c2f1f20a4f1608865187b21f2d248d83a49bf5d95d8bee85bfbe54f6b0d. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USA2P2356413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057bd0bc771802cef9bde0e8a01012f7110f5ba0622c013b52112bbd8f434ca1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USA2P2413971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8457bffc0643395949c602d2878d27cbc6fc3a6734b524d83122565ea281fd. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USA2P2428313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8509f31b1f725c8ea297a1ef630ae31c54b9614d1a478deeedccb1a97f4531. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USA2P2468560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dd956347977bd18f31cc6fe50622ecce8c9fd71e1c1e0ca493d27103976de7. 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/USA2P2211803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd9e56a4435d16562cce1df808e84483cb777846c75a70b38755b36894d91d. 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/QM6DC2098996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9509a3adb56787ba002f70ef1ac551a8bff44b3b3a6af1f79f5a5013d6a33855. 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/QZ5AB1887899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297e982380893269e136ddbcf228bbac43089175b4779c9512b5b81b715ea8d1. 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/USA2P2520059.