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 0xd2044ce48be3188d1cb06a0c3e236b48507598b7eaafd0d606241d8efc39a2be. 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/a91460aa-3369-4a53-8362-d43ac89cf9ba.json and https://artists.proofprofile.net/proofs/artist/a91460aa-3369-4a53-8362-d43ac89cf9ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tu Nombre (feat. JC Reyes, El Daddy) [Remix]
Tu Nombre (feat. JC Reyes, El Daddy) - Remix
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 0x5600e6902b92b891f113fa9fe5084dd2426499551222aa32bcbb9235b43f2e2e. 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/ES5152001075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846b220f88cdb0e4ead05d68bdecc5e0916b041c2ec0f1232d26e004837a2c17. 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/BK4DA2308377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f420037604b7fd1a12476fef8c1ee9f8f967d482a81859c3f9906620133f0e9. 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/ES71G2305549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8449f5b2cceabc9850c6c3ee6cf0007695afd89f63abd85947733b62cf150f. 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/ES71G2209083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58db56d44f63aadec55c13f097b0cab5844ddc32f627388d69a022f1db57816. 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/ES71G2030549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea8ec84de978a7db3e44bcae93fa7c0cb88e5fb7ee6904954663e0e800263e7. 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/ES71G2131586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c16f8cc74ad91ef737566baa44c7726a2ab9e7ffb197dd9f282c48a083580. 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/ES71G2131580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9791def9e80c57393859069e75f0944c0684b1bfd51185ef57c9c9cb8b505c7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2059885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa492ca6ad34ae1b3279140401471ee09fc8b365925c7c8d68d67f71cc3c45. 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/ES71G1951862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bb445828ae62ce5cec25ee1bd9b43114b8034581b220ef904299e8cba85eb3. 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/ES71G2335070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042afabbdda8bd725f62f5b79d92385fa5b4decc4056f01481a083410c0c68d1. 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/ES71G2319306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142767cd41c87b83c1c03849085b0508aa34f78aaf2047bec8b643f20ab87dca. 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/ES71G2312840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa202919e6f211b8958d41962d27fcf1ebed4d318b891ca36205ce2864c8d1155. 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/ES71G2151140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9791def9e80c57393859069e75f0944c0684b1bfd51185ef57c9c9cb8b505c7. 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/ES71G2059885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260844973f278b512ee0f65c6937c1cd40a1acb8917caaa2d152e46fdeac6c62. 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/ES71G2038328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd64db104fa1c37d340e35e1f6cdde852e757564c580a5d8fa3c9a96603e581. 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/QM7282414604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de7acdf0832835b8e5971ee93e692e3eec9184d08d707fe789a333bf5479e9b. 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/ES5702200465.