1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7a17343d33b0c67fc6db1433b7118f6f3cbdd476a8c948d422963ce13a1436bf. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f146165f-563d-4eb4-b059-6ab739db6d18.json and https://artists.proofprofile.net/proofs/artist/f146165f-563d-4eb4-b059-6ab739db6d18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alpha Collection, Vol. 12: Choral Music from Canterbury Cathedral (Remastered)
I Turn the Corner of Prayer (Remastered)
Hosanna to the Son of David (Remastered)
Let Mine Eyes Run Down with Tears, Z. 24 (Remastered)
Doxology (Arr. A. Ridout for Choir) [Remastered]
Alpha Collection Vol 12: Choral Music from Canterbury Cathedral
Five Mystical Songs: Rise Heart (Easter)
Five Mystical Songs: Love Bade Me Welcome
Five Mystical Songs: Come, My Way (The Call)
Five Mystical Songs: Let All The World (Antiphon)
Five Negro Spirituals (From A Child Of Our Time): Steal Away
Five Negro Spirituals (From A Child Of Our Time): Nobody Knows)
Five Negro Spirituals (From A Child Of Our Time): Go Down Moses
Five Negro Spirituals (From A Child Of Our Time): By And By
Five Negro Spirituals (From A Child Of Our Time): Deep River
Choral Music by Campbell, Armstrong, Jackson, Bairstow, Cocker, Porter, Tallis, Gibbons, Knight, Ridout, Vaughan Williams
Quatre Motets Pour Un Temps De Penitence: Timore et Tremor
Quatre Motets Pour Un Temps De PenitenceVinea Mea Electa Poulenc: Vinea Mea Electa
Quatre Motets Pour Un Temps De Penitence: Tenebrae Factae Sunt
Quatre Motets Pour Un Temps De Penitence: Tristis est Anama Mea
A Ceremony Of Carols: In Freezing Winter Night
A Ceremony Of Carols: Adam Lay I-bounden
Hymn - In a world where people walk in darkness
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 → block OTSBitcoinBlock must exist at that height 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 0x2ac6b10d39ed91682f05fc26bd5ac0409a1b40d837957fb382fd6bdd807b22cd. 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/UK7FX1610305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b95ba7bd0bc14f940dfe5ad14f2d2bbf4aa07af728897911798465c2cf1f58c. 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/UK7FX1610307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75aebff27eac87b5a7918e47695bada8173e90e4eea327da90d3e832ec8c2d6f. 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/UK7FX1810408.
Palimpsest: New Works From Old For Saxophone and Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78f1daa71453142aa8a9b00fab7931e2e6e7c798bba8113f56ec82a6f75dddd. 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/GBLLH2376606.
Elgar 50, The Very Best Of Classical Music