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 0x8e5a17f6244432da801b71c630956f7945baccdef9e327db9dca51edd83f3a9c. 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/022c590e-5984-4cb8-afb8-6f9a78c2c533.json and https://artists.proofprofile.net/proofs/artist/022c590e-5984-4cb8-afb8-6f9a78c2c533.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Complete New English Hymnal, Vol. 23
Crucis Victoria "The Eternal Gates Lift Up Their Heads"
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 0x07d795c9ccb884652849c1976f3068b105fab00834e40c318c5c787e957d2ef1. 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/GBXUX0872301.
Kilmarnock "For Mary, Mother of the Lord"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc654a64e97fd9fd48e78b1baab96e90c5e12c587137640abe8618f94614e6cba. 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/GBXUX0872302.
Shipston "Firmly I Believe and Truly" (Arr. R. Vaughan Williams for Choir & Organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fb41c5a0931dcc538e282de52130a25386ddc2e9e5c451688aa58a3fd41adb. 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/GBXUX0872304.
St. Hugh "Lord Teach Us How to Pray Aright"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba8a1925cb75e963e79f1a340a352b944452213a6804f4e5866210f232cdd94. 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/GBXUX0872305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7c0ab9677d2500d65ba244f3eac7eb0f435bcc2819c10e2815c8bab56768ed. 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/GBXUX0872306.
Old 124th "O Praise the Lord, Ye Servants of the Lord"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cb8403ddb85b15847d9139cc97d8eb156b9d41345250bd566cc3bef3a83cc3. 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/GBXUX0872307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c634fc869071b3dc2bf8bb4fff22afd6a0738e2a7b579a5015942cf13bac78d. 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/GBXUX0872311.
Aylesbury "Breathe on Me, Breath of God"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d0138a52fc59527c0c49b458ec2b54500947191883e1c9ed534801ccf56b25. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBXUX0872313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93b246453c6aadc28051c7f7cee13e670c82ca9e7f79b5c4434395361285e4d. 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/GBXUX0872316.
Dominus regit me "The King of Love My Shepherd Is"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624e12d275b10a3e5955af0f37a8b0e93554f8be75ace85da63a4735ad714cc7. 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/GBXUX0872320.
Contemplation "When All Thy Mercies O My God"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc41459c1230de0beb947742e304d5081e28d5e96961fcbceec1b7b40adee8a. 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/GBXUX0872321.
Laudes Domini "When Morning Gilds the Skies"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d562d3ee90e12b4d52b414a3f42ce7f85c1b794d0ab865b98ddcdc46e48193. 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/GBXUX0872322.
Farley Castle "Most Glorious Lord of Life"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4634702ce2fd95e7cc0226c19ed4ea21bbaf5ea15fe4cb708cbf3593b70835. 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/GBXUX0872303.
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
Mendip "Prayer Is the Soul's Sincere Desire"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e0b0906e136767ea06387c2cf8c0fec0fdaa9af823d76588aedb8f33c2f516. 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/GBXUX0872308.
Sandys "Teach Me, My God and King" (Arr. R. Vaughan Williams for Choir & Organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ea399270c143e15df2973bb9582b1526cc6b53e2e832bb847c2f05494e9780. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBXUX0872309.
King's Lynn "O God of Earth and Altar" (Arr. R. Vaughan Williams for Choir & Organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1e4e40f219b2bf914e9eaafcb213edc8262611ed63869f233127ac2bd4c41f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBXUX0872310.
Daily, Daily "Ye Who Own the Faith of Jesus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601eb1f2fd174e68b875cef47d96672fbfac95bf74ddb7e6c0d885bf75c48f39. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBXUX0872312.
Rievaulx "Father of Heaven, Whose Love Profound"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3674eebb28dc4c0f000213ecb3ddc485d76595f66523cc9f381634671d9ae2a2. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/GBXUX0872314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090894f644f26bbf26931b227211c00b5a0cdb1d2b20edd1dbcd393cc92f99e5. 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/GBXUX0872315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64cde042233d695a4a25e4a9c5568d7b3c0abc62244ab1d32610a052ecf6964. 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/GBXUX0872317.
Arden "O for a Thousand Tongues to Sing"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171b0440b1157d30185768935825d603480c494fad37babdbacb62fe48117a2b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBXUX0872318.
Chorus angelorum "Praise to the Holiest in the Height"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2708a9364c25819fd29af8f50f5b166844d7693242d51fbd2c15290e2b8756ae. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBXUX0872319.
Galilee "Jesus Shall Reign Where'er the Sun"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c10252a385492115e2931b4b57abc0f835cfad482f6f61d755387e629f04a9. 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/GBXUX0872323.
Stracathro "O God of Bethel, by Whose Hand"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1246335137aef1b1caf6763d844b1282412d3df43002d8820d7bbf943afec720. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBXUX0872324.
Strength and Stay "O Perfect Love, All Human Thought Transcending"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a26a57828d89168622c60e71c36154ca7cb8ae9abdd5b5d09b70ec38f6046. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBXUX0872326.