thumb|right|Meston Reid as Captain Fitzbattleaxe in Utopia, Limited, 1975 Alexander Meston Reid (21 March 1945 – 31 October 1993), better known as Meston Reid, was a Scottish opera singer and actor,
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 0x52d6838d82c2173c69c1e6ce53707f6fc4fda6f7a3aa9478d855278a65ad68d2. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07bd23e0-783d-4d46-8351-5e4081365dec.json and https://artists.proofprofile.net/proofs/artist/07bd23e0-783d-4d46-8351-5e4081365dec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
15. Oh admirable art! (Zara, Captain Fitzbattleaxe)
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 0x00477219514053670385640aa1d3f738adc3d5f55bcc32fe4542179c1795e99f. 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/GBF077541816.
Gilbert & Sullivan: The Sorcerer / The Zoo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7a344eaf7fb13d0f74093b67744ade7c7368e8bd9c0105bee317e1db5b83dc. 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/GBF077743005.
The Zoo: Once more the face I loved so well
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55457d653689755b7352b9aea26a9014de42c91edd34fbf4174d417f7db5ada. 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/GBF077743006.
The Gondoliers / Act 1: 6. We're Called Gondolieri, but That's a Vagary
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393c7b2210899d0d83381db628128c22c4e212a4d896b19f4bd4d540db64aec7. 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/GBF077744707.
12. Oh maiden rich in Girton lore (Chorus, Zara... Cpt...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8129539213c258c07ea7e515ac389dbd6d856567de6aa185d93a61ca6137ba86. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBF077541813.
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
17. A Company Promoter this, with special education
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057b3c6c59bf68a8452f9c8211ce60310a0884ef108b3e01d86b97fe05b8ee72. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBF077541818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f1f4dfc41b8cf8d2b482da78b29f38c1b5fdb3a278713721c1f58813867c9d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GBF077541814.
18. Oh, Zara... A tenor, all singers above (Cpt.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681fe4e6c50a0fc2fde7690bca407bb4ec6582168530dda95963d69620eb15e9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBF077541819.
14. It's understood, I think (Captain, Zara, Saphio...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f2907dab9eb81dfd289fa1011f687884df4877325086820e54fabec525d8a6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBF077541815.
19. Words of love too loudly spoken (Zara, Cpt.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2b67005de076ce0c4e8201d2ae5fe9523978f79c9ee9b62fb8b46733e91dfd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBF077541820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09852857883830e42977c91b7398dd2a33e540345611188b34e7b08dbc98a6b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBF077743007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557aca3635d89baeb1c11cee899c6618b10fed7c2569e3c56369021bbefb626c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBF077743013.
The Zoo: Finale: What do I see in this disguise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc004eb358f63d6533c4ed632a0dbddb193a59c068a2d52fd9c75ecf6f44a96e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBF077743014.
The Gondoliers / Act 1: 5. Buon' giorno, signorine!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e958907b15380fa92208fe81bb8e2105585f6fea3940b558cfc556886f01b50. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBF077744706.
The Gondoliers / Act 1: 7. And now to Choose Our Brides!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e880a5177fa83cc5c3de31540d8e4a2d57ede9ceaa44e7e59693ce0e1ed794. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GBF077744708.
The Gondoliers / Act 1: 8. Are You Peeping?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de0d73a143afaceafe3e1bb9c564b3dbf3607c8033599a59e133ede1b48700d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBF077744709.