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 0x94a05e6a7898484f166038b5451d07e5fd71700fa2da1f90199743375ec54881. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf90b180-1d22-4ece-b958-3f8dc79e1f0f.json and https://artists.proofprofile.net/proofs/artist/bf90b180-1d22-4ece-b958-3f8dc79e1f0f.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 0x5f334d02f1201b2361087045c5d0fe5337cdff3fcdc9c144ef186a24bf1930b9. 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/GBLV61707280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5191bda399b19475d4696091692c20a8a8f3d2a3b4a765e590ca98b5a036dc5d. 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/GBLV61707281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0676620b4ab27b901399e2d084a0c0ba3b67e8f047adb42edce5626d0947e172. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLV61707283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473ae135c457ea1a8ad7532fc1657f24f54f998279d501f26955b77f75918cde. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBLV61707284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597ae675fe2e9796a270cda59daeb500fd5814b08d6c1fb878cb3d2e7078bc83. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBLV61707282.
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 0xe8cc2de7c05268a254f8e2cb96f7de2b681a08a102d32a4434f4b45ab8735c77. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEY471721354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4039ebcfa76591b08f89de5a5be0b74486ab65518e557f53ae47ab26ad8d96c4. 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/DEY471721355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5699faaefd6f03c381080a9638371322bdf806eb0599ca3cedbde9b9c3b94d4b. 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/DEY471721356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ae812bbad7aeb68b232ada191f4454ea3f052769e1206b29bee0924e4395cb. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEY471721357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0be8df27c6bbca4d1bdebbc207d81b8f74549824a3caba2fcd2440b2d58849. 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/GBKQU1685738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48b92e36bd73983eb428f17ce2c795e37e62661b26f7e6d45e9defc3d5b6870. 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/GBKQU1685739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904a3201f25568479d90a013d94aa08ba721842b27f4de3b3936602af248ff3a. 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/GBKQU1685740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6529ed52598fb06c92803d85aac4279c2b6decfc15e562fb508d7ceca5d794c9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU1685741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bb5fd89e32828a5a30b4eee996fa2c589fec732f0897349b6e925aed51500f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ESA011690967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f8a04a45101d5adc07643296b8d257f7b9926d65b57bc80bc2505f950294a4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ESA011690969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9178c4d1520f526739d4571a0a473a71703ed95f8e38d63b260444a9aad46b5. 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/ESA011690970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46af00e3985f2bd54e59b884f38c173587b8991841893a698a6f734e700aee75. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ESA011690968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b12f9d4a7f9011bd3d41c4b825c89bf7c4ecbbbeedce05d90d0f838273044e. 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/DEBW60590114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d46bd5620663f280eaf5647c288a859f32e15556dce54d3010130e2d95a10. 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/DEBW60590115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63359f70fb39ac9c6ddb733e461733129cd262507c270c559148dab933677d25. 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/FR2X41533749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4d5d5175b42dc030027461be5abb5ba29be543f9db8998b7e990cedff37e73. 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/FR2X41533750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99f9158d315aa581701422467c48dfb072f86cd235ca8dee1ce80c93d6901be. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR2X41533751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c73e0dddfb11ab128c8ecac4ccb1256db7955d21dbedc4570412e0a9d010e72. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR10S1454954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ed9bc1a1e74e618881f6b92789c6f3b13dae4893fa234ad765824ffaf5b283. 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/FR10S1454955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111c634706ff51b14e6ee2dab4939866c99caff5d3101802726381460dfc9ff7. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/FR10S1454956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cc9e58d5217102e282b263a916a1a0998c371bcf292c4300cfbc09a315d99e. 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/GBKN74700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e00f1fe31f5b5540ab4d574010ad0bce81823a109c9b50b8e76b7fd5fa6612. 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/GBKN74700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3186f1a8407e5d3dc1fc492567067032b46d51ddf9b3ef7ee64e20c4d319436e. 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/GBKN74700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21420a15184916524b83cb8b869c7f546fd3921646d04fc14e3635cdd1dcac9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKN74700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7bc0a47235d94d344f7cdacab94452257eadf6ce4822ce2fbee139e92d4a77. 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/GBKN74700064.
Bring the Funk to the Punk - Cabaret Nocturne Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d4f396852e86057f438224631322a668c3525b471fa35141863ede53a29be2. 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/DEZ651600402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2eeb5ac62c9a0ae972262fc24b3a274e7582e057875d9cad61e3a431bd14ee. 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/QZ5FN2011142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67402febe04bfb42d9833322c5c85a9c739adceffe3a7f98d881f87fd0b44cbe. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEY471812949.
Three Years Of Rotten City (Greatest Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b1f7a6f96a6ac8bf100a26b6573f2d5851bd7d7fa0c7916569f03cfe937cba. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/GBLV61503411.