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 0x36144cf894b68d734324ff61fd894c2691ba6961ac50d6823571079f79b25eef. 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/87720692-39b9-4641-90d9-b42968297ae1.json and https://artists.proofprofile.net/proofs/artist/87720692-39b9-4641-90d9-b42968297ae1.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 0x96649ab830b26ad3fea91c99fa27dde8416b16cfb7c9c258d4c6d5fd9d010a42. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TCAEI1955072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4900642d065d013a6ddb2926b2c9ed72a4592784948c0346596b3767139c1f7d. 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/TCAEI1955075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0942b5f0f8636f1cf62e177fc372a4a31321a2ea6f3786107f44539e5e214029. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAEI1955173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a52be32a924bded5997234e6759833cfc9a2bd8e8b647fbd912fdca47a091e7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAEI1955176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fa4129de8039ce748535284471d99b538f0779965e7217f7c8c5bf20cb0ec7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAEO1926160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20aea9b62f9839ae0ee8a6c9d0f80dfb698599e898962008001f396f53f4ebf. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:59:29Z), 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/TCAEO1926190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982f6b12c3c20e00239864f6b9da12b5b28996cc236806e408432867918fd119. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAEO1926196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ae1a5d6ca782b2bb804629858315249c72ce3fe450f9a43dae801d3fd5d583. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAEO1925789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908ddbab7b2a561284f9fa6ada95276794d27ec8ad8d5297415a739be7e5d696. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCAEO1925793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2c2d8e5a7271888518a70c298001970970cce2d88ef3adf831d6926f8f73d4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T08:30:48Z), 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/TCAEO1925800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bf778b935a85be254b89032827c8fd2c861aef0437c09ec44e8deb26fe41ed. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCAEO1925804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd54cda6151eb6af34c5b240ba8607ec450e8aef429185edfe7b244c2b08cc83. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAEO1925812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bdebb0b8d8c37cddf24eec2fc516c1e5087694ae876bb1b08f588380378e1a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAEO1925688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb9462ee6e26d4f89ea22408b835613bf9f034bec69d9f026a394b58c2ca856. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAEO1925694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa77ad44099d168cc6700d0f0ae37c884c5852d7a9dcbcec2f1997b7ef52898. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAEO1925697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507b174fc11cf3ce56a56ab57690bb399222dcdbe36fc7e84d98e71f2a44dcff. 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/TCAEO1925700.
Patrice Mubiayi hommage à Guylain Mizua Angola (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d55dfe9771d80e176d7261f020c55d71264abae15cfff2c45579f12dfb6651. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/TCAET2051746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03599b57c416058f44aa8066a8e2d4f18c7f33a62248d623f0f11e2e43a4af1. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/TCAET2051759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fda20b1d5a11c20eccf64fefebb05f671434b03c34d09bdabe1559e2450c748. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/TCAJU2581516.