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 0xc17d3de5f7e7944a5a759fcbb013f8ccf2c71f8ce84a66722629d882a164b689. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43b81e73-d3e7-48fe-85ea-f25ee41ab493.json and https://artists.proofprofile.net/proofs/artist/43b81e73-d3e7-48fe-85ea-f25ee41ab493.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All-Night Vigil, Op. 37: I. Amen. Come, Let Us Worship God, Our King
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 0x60f79b0ea82018e3c1608a26b191e7201b076683f41ac6e6aee24af96b74e8d4. 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/GBLWD1500501.
All-Night Vigil, Op. 37: II. Praise the Lord, O my soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4316974fc46ab2e392af8b47669c4d45895083ca732e435dbba2a7875c5dd6a8. 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/GBLWD1500502.
All-Night Vigil, Op. 37: III. Blessed is the man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7f460562223f5780386e1338abd357f0370888cfca4a343df04ac33ce263ea. 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/GBLWD1500503.
All-Night Vigil, Op. 37: IV. Gladsome Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc4f10ba59b074837456315c053c0254b8d0c0d8e4dc84c4289d83acd196ba1. 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/GBLWD1500504.
All-Night Vigil, Op. 37: V. Lord, Now Lettest Thou Thy Servant Depart in Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf4ae9caf339847f5b661f3c407894d1b733b207b6ae9b95f556218abe87b05. 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/GBLWD1500505.
All-Night Vigil, Op. 37: VI. Rejoice, O Virgin Theotokos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ee648c9a7951c135cb02f3995057a259277c9d1a0b7d8ff4e764edb5215a5e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLWD1500506.
All-Night Vigil, Op. 37: VII. The Six Psalms. "Glory to God in the Highest"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981cad30ffd81beaa8a22e03fd0a3f54548a93a860ba10a64f1ea3970a674920. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLWD1500507.
All-Night Vigil, Op. 37: IX. Blessed art Thou, O Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb6f4a3f116c8da7da90cae11b68874caa8f8d93c6ae011da2505fdfe02f037. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBLWD1500509.
All-Night Vigil, Op. 37: XIII. The Troparion. "Today Salvation Has Come to the World"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d228577b7e65f97a329ab527820220052ece236ed96a32599b614972dce037. 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/GBLWD1500513.