Ray Bull is a British psychologist and emeritus professor of forensic psychology at the University of Leicester. He is also a visiting professor at the University of Portsmouth and a part-time profess
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 0xaa9bdd42163351ff460e8ab4cbca72c8f1e61665a8bd7a29b021a3fb3c269d2a. 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/7bb1aec5-cab6-4dc8-8ed5-99b103f78e1b.json and https://artists.proofprofile.net/proofs/artist/7bb1aec5-cab6-4dc8-8ed5-99b103f78e1b.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 0xdd82818bb53b75054beed148a0dd1549a870969e20bb6a6374e157f4a651b1e4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:31:26Z), 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/QZFZ42192304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c53953eae5f4f7367692a9a36f69812cf953db07b1d3afe4666962bd66eac72. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/QZES82150189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46970bce960e309c164ae3bc1c645424c2c6abfe84446935f2481b432c943fd8. 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/QZES82150192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4c6e2bb74e5f5e9d7e2c74c9b0c5c4b77a17bb8c05aa93836858b8dc056b2c. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZES82150194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f944f3f89017b5681b99d5705a3cfc0bc95a5a5cf5bed799340b84f00921e41. 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/QZES82150196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aea703b76a12dc4f8147fa44270aff362eac5a6920957e32ca231325255ffab. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZES82150198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be15da4f95f50269c1bdbebfc50a0a29ff4b0868ae04aba16c8d1e1d2e3d0d4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES82150199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6159cc677b232e8db4af19136fe8a7eaf626c1cf12a8597c1ee5885b0c2dcef. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZES82150201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4b7ba3e8d543d0d7bc3d964e003cbd0231b0a9f2aa2db33ada05bfc105762e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:01:20Z), 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/QZES82150202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454112cbeea073e6c6474d3066cb8cc005b1229e37ad6a3d4255d70db22e6c50. 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/QZRP52157454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d53cdd3bc04a4b25e89b2eace9b20e77a09ab9193977cb9cabea6e9dfcaf13c. 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/QZHNC2424486.