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 0xfcbad9dbe08ef2c62443dc68554b41ae190979f39991b1391bc070c4dfac901b. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/007c067d-0b9c-4d48-9bc6-c30db8948229.json and https://artists.proofprofile.net/proofs/artist/007c067d-0b9c-4d48-9bc6-c30db8948229.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carnevale Veneziano - The Comic Faces of Giovanni Croce
Britten: Missa Brevis in D Major, A Ceremony of Carols, A Wedding Anthem (Choral Edition, Vol. 2)
Missa Brevis in D Major, Op. 63: I. Kyrie
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 0x0b75b02926077fa9ea50c7bce06f1afd7413650529a1f75b637809b9e7cfe0af. 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/GBLWD9800704.
Missa Brevis in D Major, Op. 63: IV. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0f936e810f21f77d71bc663cefde475524be132d52f7b0a34559ab88f4c585. 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/GBLWD9800707.
Missa Brevis in D Major, Op. 63: II. Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96a7b2648c21f63949881f5b927861bd8b83476c36169dce1ba5adcbf5e8771. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLWD9800705.
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
Britten: Rejoice in the Lamb, Op. 30, Hymn to St Cecilia, Op. 27, A.M.D.G., (Choral Edition, Vol. 1)
Rejoice in the Lamb, Op. 30: I. Rejoice in God, O ye Tongues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faabb0bf0caca0fbe9dd640a66b05ecba9323fdf199dcc8c68c425a3d9f1832. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLWD9700305.
Rejoice in the Lamb, Op. 30: II. Let Nimrod, the mighty hunter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7f1fc1efa5f6c5c5faf854dd8f465a9869d8c75ac7b55b5ce4fecb205b7569. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLWD9700306.
Rejoice in the Lamb, Op. 30: VI. For the flowers are great blessings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd67dbec69662efb706f813ab81af69a6249e2fc96a967dfe2dc9244df748be. 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/GBLWD9700310.
Rejoice in the Lamb, Op. 30: VII. For I am under the same accusation with my Saviour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db2d6c19533c74ee472a3a22117447dca8f9c53170bc89b39a996fb3a52b0c5. 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/GBLWD9700311.
Rejoice in the Lamb, Op. 30: IX. For the instruments are by their rhimes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dab3d9bab91067d8407d06580e0432a2868c3da3036e2ce6b3481fb36128d0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLWD9700313.
Rejoice in the Lamb, Op. 30: III. Hallelujah from the heart of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88047e793f92c53b6cc452172c4d9bf5d00cc7e79e5b8694ad633a1727539d03. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBLWD9700307.
Rejoice in the Lamb, Op. 30: IV. For I will consider my Cat Jeoffry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869620c21b6edaedf7e5cd2388a7804c7ed400ba821457749465a496d4e10615. 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/GBLWD9700308.
Rejoice in the Lamb, Op. 30: V. For the Mouse is a creature of great personal valour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85807965173b3ac082d7fc00e9f759815137bb5a98a9f0175d5796c3cdcbd6e2. 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/GBLWD9700309.
Rejoice in the Lamb, Op. 30: X. Hallelujah from the heart of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fd375509e9b9d2ae0d405f303833a14fa1a102067d362fa20852413effef26. 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/GBLWD9700314.
A Ceremony Of Carols - Britten Choral Works II
A Ceremony Of Carols, Op. 28: As Dew In Aprille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4fe465d99ab24f86452dc8f66aab7cfabdf86508e34696d19c438283b65f22. 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/GBEJP0503406.
A Ceremony Of Carols, Op. 28: In Freezing Winter Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638ee7594174e08de0ca595fd482f056d4fc8132f4cabf27c435940d36660f87. 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/GBEJP0503409.
A Ceremony Of Carols, Op. 28: Spring Carol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1815f0b8de3acdc405a183f145c1a8db21efdbe088f4d57971a0c0e4ff9867. 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/GBEJP0503410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57540d0b6b184941bf3e007d41923fe124cde7bcd81fec1c630fb6ac45dc293. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBEJP0503413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e749449d6de2a7777172784e54e7c63253f4d44386ca06ae6b786ac30a4a7a. 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/GBEJP1311106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07e14f3a09207c525bea6a1481278cfd0fbf6425bf6a42b8ed123f69df64cc9. 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/GBEJP1311107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af238d3650c6a5f9dfadb6e523d88c519f6361ded8c226425d63259c86f9f23. 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/GBEJP1311108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2840bb6bae654819530181d2c2532f33bc05683492c2fade6b2f30eaa6c5446a. 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/GBEJP1311115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f1ba6290cb7c4cc71e3da8f9d8c4983a1b015b50c3f21999b4bfdd8fa11dde. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEJP1311116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1c4b842d6061b58db565afe4c211f8df0ab3870b16ca1bdf070998c3614eeb. 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/GBEJP1311117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb51e434b18fd2a693bdf5e28a48aa13129b84fa6727a0d356c47fe26482d991. 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/GBELP0400091.
Mozart: Requiem in D Minor, K. 626: XIV. Communio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6566095bbab3486fdc222b32f9b54cc571ba6f42219923bec959ee85f9bd15e. 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/GBELP0400090.
Mozart: Serenade for Winds No. 12 in C Minor, K. 388 "Nachtmusik": II. Andante
Wind Soloists of the Chamber Orchestra of Europe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf21bb4359f64d26b2fda9878ff92742d24739e55a42caf2a0b70198169b2711. 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/DEA800115496.
Mozart: Piano Concerto No. 6 in B-Flat Major, K. 238: III. Rondeau. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e1199c91bb677cd5b803802b12cb9f588d44bd00c16e12099b8b117115eb77. 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/GBELP0500323.
Jehova, Quam Multi Sunt Hostes Mei, Z. 135
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddfafcb8c155ae93384669e588aca795b333247a7e2bc51b13af3b75a9063b7. 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/GBEJP0402401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b13087fcf45eace6676fd84c74b9e2152a0c7dd8201a68087979ae2424fac3d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEJP0402402.
Love's Goddess Sure Was Blind - Ode For Queen Mary's Birthday (1692), Z. 331: Long May She Reign Over This Isle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18295e774d0e07cef2f22a5f9517d38e478ba2d9452a76a91e0f692e959a1c2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBEJP0402411.
The Complete Funeral Music For Queen Mary (1695) - Order Of Service At The Burial Of The Dead: The Queen's Farewell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b9225825248125bae83d9d9e967d035a77f1f35217f1d17b3a352e0bf23e85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEJP0402416.
Elegy On The Death Of Queen Mary: O Dive Custos Auricae Domus Z. 504
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20936f7a03dc7654e51ec3929812d2fd3085bc5fd881587d74a601153eb7aaab. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBEJP0402415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb51e434b18fd2a693bdf5e28a48aa13129b84fa6727a0d356c47fe26482d991. 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/GBELP0400091.
Barber: Agnus Dei - An American Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ada5f1b9fc0b64d6245012503360a1a66cd3975267c4e969b2a3688a79ad1a. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBEJP0503101.
Four Motets: Have Mercy On Us, O My Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b13dae62f7b983f19ab0931d6eda852d860945fae019fd81f9cf5fecceb33e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEJP0503119.
Four Motets: Sing Ye Praises To Our King
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888cd2786a075cd505ab2954fb06d5a1c16fa62af856c1da400337747809992c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBEJP0503120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7003ed6f31d4b2f84960fcf85ab2b2f8aada5be4af60a8e243b30c6bb25a98. 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/GBEJP0603808.
The Rose and The Ostrich Feather: Eton Choirbook Volume I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3759073d0312abbfeba41c1b87334a18c97b3143cbad99da94f056bd1301ac52. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEJP0301302.
The Pillars of Eternity: Eton Choirbook Volume III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb87e960eb28f60adae5a77b579dd39d4efe03fc509cbf2730ae0d296bfa4d98. 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/GBEJP0402206.
Jacob Obrecht: Missa Sub Tuum Praesidium, Benedicamus in Laude, Salve Regina
Robin Milford: Fishing by Moonlight & Other Works with Strings