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 0x9cfda945d856469bea18444278cdf6e53072cf2658ebfa5034f12bbc0d3f0d91. 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/6b77c86f-05be-4bbd-b771-6133b97d7efc.json and https://artists.proofprofile.net/proofs/artist/6b77c86f-05be-4bbd-b771-6133b97d7efc.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 0x8f2261227c4de2a8c54d266c54c29f3cc04e33dad394fbbc2839ee1afd7b46da. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR0490900806.
Sürüler İçinde - Aşağıdan Gelir Gelinin Göçü
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d72b8f8255402c5557c60abf8abadc7e6109bbc72c13354e2afda6e1e1adde9. 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/TR0490700410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef25617e71d8f30490a8f1bed0a7a36accc09205bf8aaae92de401c8f3a57e0. 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/TR0491001085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f0bc68ea278fe88da054a01596a3bb006c4d63e17ecf2326001a1e2d502c7b. 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/TR0490700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1276206a5cefaeacdc033a9f954f47a82590b77ce7fbe9f5f6b1eef10e249206. 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/TR0491001086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe798e08c9af12d1ce60dd223413b1ec99737f6f1dd0cc2c2ff642a8548b7734c. 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/TR0490800613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470704b3fdc6e0df87f92ec8ddba79e6edff838effd393eec5a6615324952113. 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/TR0491001089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dc15810edce8a78c1062e0f988bdccbfcb5538934d84c20cdaedad3b9b7367. 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/TR0491001098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a8f39eb2ff50c8f86350ae289d2c8090ce7d8d5afe6df8285f7baa6adf147c. 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/TR0330602095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba35318379d0d4d8f406e1509d6c236fe3ce8841f81d3a63e54896f0a853cd3. 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/TR0330602094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410ba7a3d9c28fed53f35455df8754aa0c7d9670d71015467dbc4fe3621b7ed0. 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/TR0330601765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4704fa69b55ce41074bb740cb3476e243430a15091de88b40a3fb229d8fe2a5. 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/TR0330601766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb809bfa8625a572fceff9409ab1adf46e7e9ed488d802f3d56ebcb257add91d8. 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/TR0330601775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c70e98d53d97cedd6c82143677f16b4fbfe4252087abf22a86128a9fd2dacd. 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/TR0330602085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51fe12f834e748b8891cd3dd0f8b384146ab69e66acbed6efd3fe2ffba8b4fd. 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/TR0330602082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19741a40efd170785a2de2b5fc5b2687797db6713159a95572ec67373d9b38f9. 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/TRAJY1511164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69a8a2144c54efc216de2a421a2d17a174ac57c98f85aac2e75576d36eaa46f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TRAJY1407424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1a1918818b88ac47de6541573b8b63f350fe1a008817c19da768acc0ae9cca. 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/TRAJY1300239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ae6844c5910625d6ee4d2c4cf3b479fb77bfb9d5c2a415e5ede8e8f2dbce2f. 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/FRX762374177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00ecb56b8b59dfb0b0f70c923605b78a424933b81b6ef30dd54e914ea1ca0d9. 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/TR0240600403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87061fb1b208d1c055632482d65a1fc1a026206ebf71207499eb0e1d930ec4d. 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/TR0240600414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87061fb1b208d1c055632482d65a1fc1a026206ebf71207499eb0e1d930ec4d. 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/TR0240600414.
Harman, Vol. 2 (Türk Halk Müziği Serisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fba9c26d7f92709272dfa33e7a30eb81be15c109739df7342eae4a03e2be27f. 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/TR0490800610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec7bf23a47c36b808ee45e1293dfe81bb08152d90f1efb571afbd801040b2ea. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TR0490800616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2d26ea4f53c3a5b3b0d5d487c5f7fb3a8319509549cc0e04d84d145dcbc8a1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TR0490700431.
Harman, Vol. 3 (Türk Halk Müziği Serisi)