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 0x83df63a54abf79e5de7fad15b7a13b7bc460134e3cbedfd562cd01e9b16a252e. 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/04c44710-d618-429d-abec-cbec95d93cf2.json and https://artists.proofprofile.net/proofs/artist/04c44710-d618-429d-abec-cbec95d93cf2.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 0x254e70d3f24b41973f7618e50543bd5f052f18120d6d543090418f8cb50bab94. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/INH822402006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166554890e2f2ddfc903c020d8d2c02e226cfcc449c6f24930b803fcc1132e34. 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/INH822402007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa812821839ae5ece6e4b802aacf11d2966125e4ece630f7aaf82cb7bec29530. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/INH822402004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22c4f41c0d6598df0e1e665cba56041cd304bc18d30bbb1849517316df2b2e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/INH822402002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54af90d0875210c334709888bd08730c68f48d4663a85ef3cf40bc98b636fcaa. 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/INH822402009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42763e2e053e5c4cafa60575ac3c71779e1b94cf0346166c1aac0435537452d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/INH822402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286288b5eff93da4803411adc078ae63fd4209c8197b49098752495f25894abc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/INH822400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c6751d7158aaa059dba9b4338363389a8a60fc66eaaf348bd4643c0ef831b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/INH822402008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f94795564d4a9b81f6c2110f5ed8b4b4226b9f0b3b71ee4fb537fc1afaeece. 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/INH822400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee87ea49ecc35edd1ed06705bbd75fc5c027d63de7d343a66ff22b62eb5ef93. 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/IND862406037.
Kanudo Batave Aene (Kanuda Ne Koi Bhadel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f5dbaa0affe3ced215c2adcbbea4d1b6d69d3123e91f8fd783c9383435e3fc. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/IND862404454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c3027e9499306245ea9183944b6f93567f2e5c672adab8ffe884a6c28f4942. 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/INJ332406046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a1fb1cf2a0987bcf779b5edaf20f62f3e58a3d6fa81ca97ee178cd943cc501. 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/IND862402559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675d9079c2507a15d1cf3c713fe2b6e53901d4003dc5b0bedf294c0a60f4d18f. 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/IND862402445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56c654bf2eb0ebef36965d776b7ced4c278d785fdff945ae55b89309bf3608b. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/IND862402223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321d8f8129c9d6e0b34ba5315729ad87cd56401ec5211c7a3a3ee3c21ca93b3a. 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/INS7A2633845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97522bca42297c8f10cf88867b615557583240214af3f76908029a9c52005d09. 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/IND862401085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735881a20531912cf392ca9eae99b1e4c3bd249115883b2421c0a1e9bca5d002. 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/INN242400747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8df0ef7dae03ef4a0fbc2438106474829d98cd31326edb62dd065aed37d7419. 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/IND862306868.
Madhde Ugi Mat Sonal (Lofi ChillOut Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b99a41813770938a1659210201368be895ac7ab163c6e5530146a03d7f24e6. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/IND862306417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80013b499b42f2e9aec1c50880d8e76c47aeb8a19dc765210af419a13cada331. 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/INB1Q2303255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b40b94c330d54504a65af96cda8e050a92115e46bedbbf49550a7c905e53d2. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/IND862306250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb093f3e6bbe6e73b8c778f08c0ed067ccc09bffff9b1d95a780dbb1a61fcf7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/IND862306068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad74fb3f038116842b1c3b6db5937aacc4f8b0ff8f66ab455b962976f2dac82. 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/IND862503400.
Bhaibandh Male Na Mane Tari Re Jevo (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd54cb9cb2995899cbdec62b16fe3619a44d5771be5758b986f0394adeba319. 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/IND862501550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662b07d1d16f785b06c8fe783d72b040b603cd69d5b56f5418ad94a9c744d2e5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/IND862500887.
Valo Maa No Madhado (Dhan Dhan Maa Sonal) DJ Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67263f8a7a91b52c0927378c146ad11525342d054d5dae97ad809981b7701c31. 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/IND862408868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39df4d9a399029a601703f2e4a166f7be1d0d4fb232ed6d4ea7130da3c0e3f6d. 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/DGA0T2443727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7720b30db92e36c307efd42f01cc9b78b596e27eaa01f7cab5aadde6a1b94b. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/IND862408444.
Bethi Madhde Mamtali Sonal Mavdi (Chillout Mix)
Mara Haiya No Vihamo Maa Dhakkavali Meldi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cc76f52ad7edddab543b0cc35af3eca9bc8cadb0fc39a35816c75a5cd80e8e. 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/IND862407939.
Bhaibandh Made Na Mane Tara Jevo (Slow ChillOut Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27801b1bdd4035d7025c5974ecb7ed674e57831804aa7a9f7abb5c8c433f7b13. 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/IND862303119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8b8a2edec802fb90ba89c0ba30936530c0465b4cefb8cfaa5f176693b40838. 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/IND862203759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2ce9b22d3df500e5dd253da8395ccb622843a366bbb893ca31abbcc59a24b6. 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/IND862303120.
Madi Tane Sene Joyu Jay (Slow Chill Out Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5169a220bce43a7152249fae47c000bc617fbded48c8cce50ff787573fe681. 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/IND862305552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b04807aa740b38e950d1acb4d4e70a93f09b033e6da80cf546d6eb9e6e6086. 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/INJ332300922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e94867402dfaab5132ab0a7f854013f516d449f9cb25961c0324f369cf91d2. 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/INN242205423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308285c00d7e9e0de13675b7a95632ad6fd6a14003608c3638d30db43f24b872. 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/IND862301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b65297781cfa039f42f1d533d3158f01dd0e3135f97cb263200406ba47eda. 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/IND862300592.
Hare Hoi Dwarika Valo Re (Dwarika No Nath Niralo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c629f01e02b27d62bdfdd5ad1d3617dd4c8088483de8cf0703e3989f1126b61. 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/IND862203788.