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 0xb73b2b122f6ebb4f0ce07aac588db30ae4caa38cd0ddc1c3f8f1c717ecddc973. 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/e8f48f55-fbaa-45d6-bb14-8a70614210ea.json and https://artists.proofprofile.net/proofs/artist/e8f48f55-fbaa-45d6-bb14-8a70614210ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
25 Aniversario Edicion Especial Con Banda
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 0x0952b25653ffe326d10481189f9ed0d5855a4f84945c64b3e1cd86b4eb4edb09. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZNJW2541757.
Popurrí Matancerazos: Bonito y Sabroso/ Ay Cosita Linda / Gózala / Ave María Lola / Bésame Morenita / Oye Mima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554cb326a7a8d83ea27b8465a548a81a43141a095a422299adfcddfaa8ca7084. 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/USASN2001165.
Popurrí Dinamitázos: Que Nadie Sepa Mi Sufrir / Se Me Perdió la Cadenita / La Cumbia del Sida / La Cortina / Mi Cúcu / Mi Pichichi / Saca la Maleta / Capullo y Sorullo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f0af6e39e5eb5b6169d88ab173fae85b008fc0d7d577f855232b1a2929d453. 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/USASN2101757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92efc2d6e7cf49eb61afe7edefd0ea7e8203da81c34e9280bcead6f65cf7a633. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USASN2101758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b35bcf2d6ad33e59ed7b87384becde794b1eef7549d652d85a64d9f637eb074. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USASN2101760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51033e2d87b85a7da4dc6146c05aab609b576a9f9c0fe22bf94900009a48a38c. 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/QZNJW2520690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6a3f2cb00b0898c1157698e41731012e150c6f34c090be0f28d4b9ef8e8939. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZNJW2341597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b1c6b875269ce848e78c81bba1070092f0b48a1ce0c4b1bde1a5a5c1db5ee9. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZNJW2341599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4e9efede104082337970783b20138a2c20b92856337b00581e80d81c991b93. 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/QZNJW2341600.
Barrio 1/La Cumbia Sampuesana/Los Mirlos/Bombo y Maracas/Los Carruseles/El Dengue del Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a2518da5fb1db029537e9ce61dd4a702689c40a6a3196737ffc6b80ed4747e. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZMZ92462576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924d7ba496cc184559b7204a3b1a5d99369c7b0b545955491b9ace6b60d1d016. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAIT2475678.