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 0x49f88c0e5c5ca042b954761f82ea89663824a8000b0234317e9d84800e6f4308. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24a57129-cde9-4cea-85f5-4a531f84da28.json and https://artists.proofprofile.net/proofs/artist/24a57129-cde9-4cea-85f5-4a531f84da28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lauds of the Transfiguration and Sunday Compline (Remastered)
Antiphon "Et Ecce Apparuerunt" and Psalm 62 - Remastered
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 0x160401979bcda852b4346fcabe9929f4ecedcbdd31df5cf8ade311631094690e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBHSU1700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f7379f4d4db7702408750b5f26a99fe2c036674d745cbfeae56c6bd6076c1c. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/GBHSU1700122.
Psalm 132: "Ecce Quam Bonum et Quam Iucundum - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c10eef787e5ce3987a760bb63aaedf2e0c38b649dd4d001fdb13535eaed14e5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBHSU1700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9256219003f82755a38ee4c9ad9a035a404bc713df978a1eaac8674be6fb5319. 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/GBHSU1700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eef7ffa8c406b6672b1bfbc4d0806626b83cadd0938364529438fda6858d795. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBHSU1700089.
Antiphon 2: "Sancto De Vertice Sacrificantis" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd05c268d4d25c8b017795d61e7acc4211b7a1f8f69fab1eb49ae978cff192e1. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/GBHSU1700098.
Benedictus Antiphon: "Confessor Dei Pretiose Columba" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320c6be887dbaaf235d039c27c27b5b9117bc3d04f49604d64d57ae7fd135188. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBHSU1700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d44c0ad83896ca62b9cd072e2f66e69349febaa6c7ed7dc48a7d3471a9ce8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBHSU1700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f81ab3f1fc7416313d708854386221158ba7e6aeb2e0679514772e3c4d5a937. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBHSU1700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57237bb53a035fd0dc938ef4852854e1441022aa672af46f44e24b75bcb963b1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBHSU1700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c0584b8c59bc56329c1cb65a564c279ee03b1697cfc100ea4a89c852c8981d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBHSU1700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667bef637b19113ce26a3c4aa5ae99436b20cbe6be36b599398541d0315de0c3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBHSU1700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac998c87dfa166b53b2ce1524546b52b74cd43ecf44abe3fe402c0fdb0dbb05e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBHSU1600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cf3a0ed96846de9fb8313b845c9c57b7b6e9c375f76ea72343b8d3c13fdced. 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/GBHSU1600043.