Christopher Willcock (born 1947) is an Australian Jesuit priest and composer of liturgical music. Life Willcock studied music at the Sydney Conservatorium of Music (graduated 1974) and theology in Me
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 0x2e5dabb2efa504177031c175bc0ec34bfc6eb9b13c416eebd78df61efe191b81. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/941eb4f1-8651-4352-a0ed-5b31006f6812.json and https://artists.proofprofile.net/proofs/artist/941eb4f1-8651-4352-a0ed-5b31006f6812.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Praise to the Lord, the Almighty, the King of Creation (Arr. Christopher Willcock)
Abide with Me: A Treasury of Classic Hymns
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 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.
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.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcb11cc41550e2eb2350ec564c6e510694277e34dbaca68a30edbd2d2297772. 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/USA4N0304705.