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 0x12a6be36645c9df2b82f8d2cd7a876d54081494ae585b247a2b2329b09cb916d. 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/d82b116b-8a6d-4389-8ce8-6e8fd2f367ea.json and https://artists.proofprofile.net/proofs/artist/d82b116b-8a6d-4389-8ce8-6e8fd2f367ea.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 0x1790811205ebf7fabb3685b25dc058d3b3de7b03b554a54648d7cef242ec6f51. 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/JPE101900910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa560d63607f41aa6f80958642781ff1923d93fec6f1917030ca2187a19d895f8. 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/JPE101900950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e9c8a593a821af74a8a1cf848080cf61025ee8b15f678316053f5fc7428baa. 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/JPE101900920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43f4a10cf26083ba83f9166599d572d819f2096d40aead3b7db4f3af23aa82b. 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/JPE101901100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26426fd769e59afdf03ccb123fe1668be1f80f4252ecf1f7409f9e4e4cc26bb4. 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/JPE101900930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c6c0a69e985a6276757883ae1fdad9ec6d3530823eb4c07d39bf8b6b8a4490. 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/JPE101900990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a3b327066e463ff7771c718de58410bba56d997d6229c0067fd5e974b2b7b6. 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/JPE101900940.
Unbearable Pressure - Rush Percussion Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc5095c6a8d1c1bbdf629499aa4c0f8e4b4dfac70b2379a9e9ce5893f7ccf06. 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/JPE101900960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7389233a5c72a6c7fff2d79b503c0c36961ee82ee73fa102fcc86aa652520960. 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/JPE101901110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0415fe5870372d2cfc16358be23e3ac7438d5571a38420a206d896e28c45a57e. 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/JPE101900970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad964674fa016c6972880c5bce994e9773576cd3a81d1b05791b190d977e388. 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/JPE101901060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1833f2ae08953c6f46f25c742279f4d8fecb9f41b33c88515341b50c9470172f. 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/JPE101901340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12551e4a04a940dce3469ab82e7696317d2dcc1249ffb443dd5bb44475821579. 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/JPE101900980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb527a6c5f516909b92692d98957b15e1b91eb18cd8db8eeb147d81bf09011864. 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/JPE101901120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebe4b49b00805dfbf5704013224bbd0ec693cb82ffdadca40850d1b868e9c49. 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/JPE101901400.
Devil May Cry 5 Special Edition Vergil's Rebirth Sound Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ff817e4885990df0086ddb405a10333189fad9ffcb553818841c7ec3c9ebb1. 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/JPE102003510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc773edcc4138160ba1f52a5fca062cdbbfdd4b3223d07b4308ce2a2003f3021b. 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/JPE102003830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0df98de364952e92e8c090f5bc29cd25c8a6e3a0196eef5103b033c44dc79a. 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/JPE102003840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee931910e6956b7b1998e7ae4b76d152ae48107e876a1d6d54b95754a7e130c. 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/JPE102003850.