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 0x743760e33306edd70a0e9663acd737c8b4d8895452d730a8f5ec0b0fcac00d32. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5dc2926-13dd-41cc-900c-424be06f891d.json and https://artists.proofprofile.net/proofs/artist/e5dc2926-13dd-41cc-900c-424be06f891d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soirée parisienne: Royal Academy of Music Bicentenary Series
The Crucifixion: I. Recit. – "And they came to a place named Gethsemane"
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 0xa8fee58a64757314841ad03b47bfd8d9de246f483f18ff8954281c82724860d6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBEBL2427501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b7141bfd787b97b2627d0e93c50b2d75e0add16157bdb9347c7ea3de9be377. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBEBL2427502.
The Crucifixion: III. Processional to Calvary
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe823382592ad146c24d12ab3cef7f16c6a8dbf565e87ef974d6794f05772a8cb. 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/GBEBL2427503.
The Crucifixion: XI. Recit. and Chorus – "Jesus said: ‘Father, forgive them’"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0ca594c6f39eb35767d1c76bf0e0324701fa15dd240989e9e734ebd0a75c32. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBEBL2427511.
The Crucifixion: XII. Duet – So Thou liftest Thy divine petition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb3e958d89cd46a4e3bab92119bab09ec09f3c5c74237adaf65f7c857774d09. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBEBL2427512.
The Crucifixion: XVIII. Recit. and Chorus – "After this, Jesus knowing that all things were now accomplished"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dab9bc4577aa02334b9e9b5cf73ccdd026802b8c97bd9775546ef08909afa2. 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/GBEBL2427519.
The Crucifixion: VII. The Majesty of the Divine Humiliation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff6ccb2f91ede2dc9c709b18d6fd70e972ab6aa81e4377c9de7128d6c0e9bc2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBEBL2427507.
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
The Crucifixion: XIII. Recit. and Chorus – "And one of the malefactors"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6108fc1ae5a45144c9a22170a1898dba979d6d93c5cf4f6626f15ef4a8ff18ec. 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/GBEBL2427514.
The Crucifixion: XV. Recit. and Chorus – "When Jesus therefore saw his mother"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8702bc939dc8bce3914b014e6b36fc53829a68ee6beb0786fcb1d9025c8c7ee. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBEBL2427516.
Candide, Act One: "Quick, Madame, The Jew!" - Entrance of the Jew - Entrance of the Archbishop - Travel to the Stables
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1befbe76edc4f66b87a133a8e95432451e4dbbcabd08133865faf771c5cc0a98. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBDGQ2133418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda4a9a97825c76311f4e1f942aeaff3167a123aa19bf4bc942ae5ee300b84a5. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBDGQ2133424.