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 0x7257b7d97c051c828461e0263ccb8bd7829d57c4fbeb386afca9eb30af35770c. 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/3dc636d9-db7b-4d4e-8b00-69e4267bed29.json and https://artists.proofprofile.net/proofs/artist/3dc636d9-db7b-4d4e-8b00-69e4267bed29.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 0x52eb8f6871efec46473912113f4471401ec46e0d88fbf46e767be8c130718c10. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DELJ81514397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3d88880d4ba7de677fc1699aa750ce83b006b137673aa054419484a011c9da. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DELJ81514396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34cf967eb8faa4e7c66664319fb0fe547a19a4e37099ff49d458ef2b5562f69. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DELJ81514395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf132a5066882bc81b27048034b7f94ab085dea4cf075b4748addeb75e95ce546. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELJ81514393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf728764c1e6cfaa8835319d5c8fd30284a181b21002a519f5cbeb7ef32fc29a9. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/DELJ81610893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ac0ecf6399bd9df7393b6b30c1a49989e3cdb75485a862c63e6ef06945234b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DELJ81617432.
Fame/ Bbm Ist Die Gang (feat. DEAMON, SCENZAH, JURI & SpongeBOZZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831abc093585c4b51334314e90f75352bed31cd82aaf34107cfe302474f1e879. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DELJ81931873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8c98897d2052987e59dd0b7ae8fcdd75e0657cd3bfbde5835c56cef2c5d34a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DELJ81943478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5816d754f4d0d0c20cc6926154dfb3b1733c082f9202c0cab6d035af21501d99. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DELJ81953228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1ca84001b65c1ddb773e4485497cc316b571436816cf507d7b7c32949b4cc1. 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/DELJ81953229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cf602f9282ec2277ea8e02df1e683852ab93e88b125992c3a736deeca7e914. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DELJ81953230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8c98897d2052987e59dd0b7ae8fcdd75e0657cd3bfbde5835c56cef2c5d34a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELJ81943478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb678f18f7262ea8938e01f5afdaf9eead19ebc3f29ed7a60826bfbf14bc4c229. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DELJ81953231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243dd86a6b1222899056621f74e66b6ba1a5e6cb29b95592d5e98eed6fb3f6d7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DELJ81953232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f891f644faa6548eec7e8e6d40b4ad2fed24fa91367546e6fa2136f4f7383d9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DELJ81953233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50abb0a49c54a0b6531676a13d4ef5337cba8b43c8597c4e72df55bfc8a59945. 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/DELJ81953234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaffc17363d9d059e1f8099568e838892e782d8f629aeab5d2fa6f68ba2ee2da. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DELJ81953235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb216b063e89bd45acd442c5f093f741745b464360dd8a371106c76e11a2212ca. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DELJ81953236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d60379f3f9190775e1c94c67ab9f95484118c64d8e8403b7c161339ba7da587. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DELJ81953237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9a0263a1850fd42c8346d1b28bc7548b7c1615390e89eb2e1813a0d19bf36c. 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/DELJ82007776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4324e0a2dc6b8d219782d91150c5e71bbf37aa05176032caef2e9b75f1d676. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZC62258120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e59da6ba59d3a3c7153dc260c75d80a6cdaf29d7b7c0dc31c10a091170dc8a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEZC62267459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8801a65dd64121e8fe2218861b25c1c02cab40a0eb678c7eb74db73bca50881. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEZC62271438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8801a65dd64121e8fe2218861b25c1c02cab40a0eb678c7eb74db73bca50881. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZC62271438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5c519a9a2c20c560eed7a9f2d9b7612b40853fd1c22430e21201d3da46969a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEZC62271439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a4978507fe677a51436acf1517037058493cd9c81c5fd1312cbe285490c109. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEZC62271441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b371060866c3c4b3c7877583176a59ba01fe6f875041a137394d4ced966aed. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEZC62271442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311b26e08ccdea902ccbede74436e9d9c46303061557c6e8e0ac1c246ebf6c14. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEZC62271443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bad7035420ed9735a8bb5b0029fcf1bfe897c32160d4edb7965c4ecb958ba51. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEZC62271444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaabd8b4773888cf734b485b806ea745b82f724591419f96e9fea41f129cb14. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEZC62271445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd215d50afec63b734e190fb748bd84b9faca59c9eebd1894d04fecc778db23. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEZC62271446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4380f08c05a1fe62a5e592737b4ef0e93b48e51d24c1fadbf3c63be93a1667. 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/DEZC62271447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d50ada76f7eab7fa086ec3be97c283eb23603b205582cd918962791212bf17. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZC62271448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ddaf46447186245813f553cefa858de12f2f914413885b660286df8db78ad2. 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/DEWX12200016.