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 0x0dec0418c84b0567929e22f612433e1ed8e81af7ba0230d96a2b149406b2d9cb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25403a51-be5b-44d6-b741-e2ee9b0ccf3e.json and https://artists.proofprofile.net/proofs/artist/25403a51-be5b-44d6-b741-e2ee9b0ccf3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rejoice: Sacred Choral Music Through the Ages
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 0x1070024589a880ea667bb3eb02235c4b1800b44de5f7fb6cada6d4d6fd2268fa. 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/AUAB00250050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06deafc35d6f7f4b64b2e1151b43a57dde0f31ef88b667edf28bff3545ab418c. 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/AUAB00250051.
Abide With Me: A Treasury Of Classic Hymns
Abide with Me: A Treasury of Classic Hymns
Praise to the Lord, the Almighty, the King of Creation (Arr. Christopher Willcock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a119db89a0edb05e6794e205d7c0f68b1f5d0abda3411ec936cacc52be43f. 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/AUAB00650476.
I Vow to Thee, My Country (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e89d066909c089ba3eb4ea938d95a8b568d7455d868ef329b1bd63c948fbf31. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUAB00650477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863f767df6207bc96b745c2d06e2a6956e33605fae4d77b372297ce0e68080cc. 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/AUAB00650478.
Be Thou My Vision (Arr. Christopher Willcock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277ccc9c527ad9277f1fd5b6d73287abd81a2d00fafed455d6026aee34c27160. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUAB00650479.
Lord of Earth and All Creation (Arr. Michael Leighton Jones and Christopher Gower)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f1299fca5e099520501957d2fd1132927b7686d0c5851ceab2bf70137b380e. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/AUAB00650480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9bfa5648cbd8eae550949d4664cccc519cf548c24b4dfc6f8d6bd8d5a4fb83. 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/AUAB00650481.
Holy Father, God of Might (Arr. Philip Nicholls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb80ec8a9f53f1c9fef7bebaa1e3d026383df3a9ee6225d4dbd333d56d2a8f2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AUAB00650483.
All My Hope on God Is Founded (Arr. John Rutter and Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1b91297da9f0bc53f324bbdce51786dc19174d6df9fe10e0281017d78d63fe. 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/AUAB00650484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7678390db21b3ddc103fcae9a0a03cc924ffd1d692bab40d663f40178d2da475. 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/AUAB00650485.
All Praise to Thee, My God, This Night (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a51386cd20e90292824acb2e2844089ef6fe2cb8bc102caf9e579a6b14a261d. 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/AUAB00650486.
Abide with Me (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338f29c6d7cce094a19e571c6056def923a26b4ed9e3c35a6b8f73c2f36bf44a. 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/AUAB00650489.
The Lord's My Shepherd (Arr. William Baird Ross and Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0b4ad4b7fa1deff86b7bec76ae671f9faaa7764df0d80bea5488ef89e81d81. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUAB00650490.
Eternal Father, Strong to Save (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea3f3e3cbc072a2b0e30d692881a3c71ce72197de9505111265c5c90f8bb28b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUAB00650491.
Love Divine, All Loves Excelling (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d3af1867fc412bad4d41e8bdf72da893da7d8293b637a7613a1b64673ae7d2. 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/AUAB00650492.
All People That on Earth Do Dwell (Arr. Ralph Vaughan Williams and Henry Purcell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bc0937837f420970a24f1eafa2ee025cba2e429e5f2f5b9fd9c7fb42f2ef26. 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/AUAB00650494.
Come Down, O Love Divine (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e37d98d5b7c18cefe2211cc54e7fb37c07599ec6a2d17db230af23d7e9115d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AUAB00650495.
For All the Saints (Arr. Christopher Willcock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fecc23b4cf0573e8d5ccf5bae47e9deba7bf7ef195e9794e61b895d87b42af. 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/AUAB00650496.
Glory Be to Jesus (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da96ef2b3cb28dc13639dd84b0c10244206da2430fcb9e386bf74f09f31cda9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/AUAB00650482.
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 Day You Gave Us, Lord, Is Ended (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca15796d7bbc30d93364371e2b11a7ad0e487ee122869681c9eaa73b80fc792b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/AUAB00650488.
All Creatures of Our God and King (Arr. Michael Leighton Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b2b708d48a6aedcf111d1581da7d021a54efb638de2e5b5c68d854b9d27fde. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/AUAB00650487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5fdd18b0b822eff1ccee557bfe1ad4efa74ff04011fb6ea60073e99b7d455d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AUAB00650493.
Abide With Me: A Treasury of Classic Hymns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9650d08a864907c032ac2bd892eed302952cc3e76e63602622dc5603ebe89b1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUAB01850253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaed0feee1a2895cf5ff38b8bf3fc7ef99b4daf72c12fa166b4e0fb2295609c1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US3EU1900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4554621286c5828e0c2a4534c2b90fd3818b9844dcacce840a238b747a977b86. 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/AUAB01250150.
Lest We Forget: The Music of Remembrance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4318ec3bd477574cdd8c8d01d904af7ecbd3263928f8446f5ce5bcafb13a904. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUAB01250151.