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 0x217c7fdf134426bb40612712f701f7eb9f2a567a81c57a2e14003e7da18aa5b6. 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/f9db60e4-6051-42a8-9b50-f9c2c5be0e9d.json and https://artists.proofprofile.net/proofs/artist/f9db60e4-6051-42a8-9b50-f9c2c5be0e9d.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 0x0313e33ecd49b5f6017d57135f5847b4f1624c8c784a1402e8d471a29646ea56. 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/AR5UH2300531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce5768cb995f9723f54a791d4c8905de3e2a5ca5058a1da05b2590fde2750df. 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/QZN882353309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d. 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/ARP7V2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c0c358c143e1882cf48a41e0d0080e0d15bbfdaef58f01d734e827548c13d. 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/ARP7V2400014.
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06a952e32ff812cf5b15e8c987f2b79531d079c7d73660e4ad127cd7d7f1b25. 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/ARF060902024.
ONDA SABANERA / Zapada DELUXE! en UN POCO DE RUIDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339cc741f727c7033487147815703f1aa0427ddbeb966d85068eda5c18452bed. 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/AR5UH2400503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba41f455b3463c3ab4b1ff4fd7dec4e5b548129e0df39d59620cd93221149a5. 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/AR5UH2400504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412f52e78dfe8480555011bdd460c749f57a26d2a2e55167e5f5a6363783ec1c. 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/AR5UH2400505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ef48ede7604110b4e62af4dadb8299e9b638e4a473e92385e2e5a14056cf3c. 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/AR5UH2400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc072f882a55e728b1d28dc9a16ecde89857593e994cf5648553eab0b7f4e6159. 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/AR5UH2400507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb422faf0c2e7f0bae75a1c466da67a297b7fd7b725917b780af78a73bd63dd87. 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/AR5UH2400508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3769e8b94565af8a1596141ae6f5cf0c8e4f9b55ba451cfa03e47baaba944f. 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/AR5UH2400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5265b2610cad24c7962b7ae0285e9ee3a48af103f9da3f75f96291a51f1b091c. 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/AR5UH2400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfe37c7da5eaba1985a4a2fc0ac8f7730eafff969e31f8ef66d30ec185795cd. 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/AR5UH2400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f39002c23985bd3e5fb73aa927bf484eabfc615cf611aaf647770f3a4cef41. 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/AR5UH2400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e62d89a12833eb05fcf6dea7f0a9d9fad533fedae8e6c029602d818167ae960. 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/AR5UH2400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161a8a2a3841c1aafafeefe215d27563eedd3ff81c0740f3e6b8d6658bb7cc9c. 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/AR5UH2400514.