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 0x2b62c4a03f6777c04d5080b31aadf1c14d1158d859d18fedee926c970e06158d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09ed8b4c-f97b-4d53-a189-46dbfcead0cb.json and https://artists.proofprofile.net/proofs/artist/09ed8b4c-f97b-4d53-a189-46dbfcead0cb.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 0x2f665faddc4bf040f398ed261b404377be5e7949f24091d309b66eda8129a462. 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/USCG61800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14212f8110ee9d166f2dad80b385ed697fb4aa340e2acdeecc9364652ace2e5d. 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/USCG61800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda1964c32ae6b5097024ed47e1739b8885d201e4b9be6d0387111099094f382. 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/USCG61800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8339ef8fc8bbb6d6b8a9dd4208bdfaef23726663efb3b0033a8d8642b4038b. 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/USCG61800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c698e5c1f6489df9cd00ec4a1089895bde6eee79f324a87522a087503f831a1. 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/USCG61800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa8ccef51b4f22011611cf846a9e0ddf1f5e55fc8407a1d2757f2b55e06cc36. 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/USCG61800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c64b91cd04be1c92f217d930bdaa49dd00d124cfd5bbba6b7a6067e9921aadb. 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/USCG61800094.
Hay Que Chupar (feat. Nelson Kanzela Y Sammy Sanchez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564933d0a7b132b5cf67e944dcd26abf03e1d60acc8b85b68dabbf10ea82f060. 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/QM6DC1532336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f11fb1f2bebbaf68dc7891090e6fe4e93fa6a3296925de10c3e6e53f0c458a2. 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/QM6DC1532316.
La Tierra De Las 1000 Danzas / Ahora Estoy Solo / Hanky Panky (feat. Hitters)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397843cfb5a60b14a9c05c215661334bccf4e5e2eacd229fbbe1a1a0682c37e5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6DC1532319.
Esos Fueron Los Días / Bule Bule / Pata Pata / Diablo Con Vestido Azul / La Chica Ye Ye / Perro Lanudo (feat. Rockin Devil's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13c604a91d79e391fdc8f35d215e3824a4a100db496d929b25a7079b599a762. 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/QM6DC1532320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5985e34fff173d21346e5786db4e0c1872b52917547c06fa2e5c960236d1510a. 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/QM6DC1532324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9230dbb64fa663fc28a7a905c662138341aea4e1183ff2973a43c03b049fccef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6DC1532325.
Por Que Nos Dijimos Adios / De Rodillas Ante Ti / No Puedo Vivir Sin Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2df8226b46b2e45079f3fd5cb06468708e71c452ab5eb3c2cca9d5946395f9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6DC1532327.
Lo Que Queda De Sona (feat. Jorge Sanchez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2daa5f8fe05335041d2b4bd4a81fd1bbc6c1b6db965000002ba40dec7aa4281. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6DC1532328.
Tu Me Haces Sentir Bien (feat. Doris Ortiz Y Eugenio Bueno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4d08205108db1d670636d54fb225f5ab52ae95aa9142c3c5600dfd0252d5ed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6DC1532329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08412ae1b493917ecd2092c1f911eff4192172a732659540cb097941a37126a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6DC1532330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a33d18cf3d39a41722c516eca435ba957703525a2f8fd1c9e5c47f13dece68. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6DC1532332.
Llorar / Juana La Cubana (feat. Joaquin Salamanca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569205e04d17f2303d9e63891e7ede2b7bbe38a3aeceadbee80238f973f2b8ba. 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/QM6DC1532333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903163d26e01778fd40f8ab669973f84be68357bb0530c724cf656ff5a001af8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6DC1532334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63744a68ea9fe5b44d0c37364a55c05fce52cf875789b43668391966d469773c. 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/QM6DC1532335.
The Absolutely Best Of Bedroom Muzik 2013 Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7d61eb8c496cb2110010a84a1a22fd06ddd2de2efb5a69e812dad31f277ae3. 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/USK9N1341519.
Progressive House Compilation Series Vol. 1