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 0xa3dd016e9a46795e7b95ac4453ec9479dbbabe59ab612d7a78d8d51ee2ec775f. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ec767a0-714d-4c62-b75c-e4c05dd9dfe4.json and https://artists.proofprofile.net/proofs/artist/4ec767a0-714d-4c62-b75c-e4c05dd9dfe4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oratorio de Noël, Op. 12: No. 1 Prelude In the Style of Bach
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 0x12d0b0b285cb0c9c8e95fa8ecc7f18a3e4661142bc5c2f7fa469a2319ac17ffe. 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/DEB110600801.
Oratorio de Noël, Op. 12: No. 2 Et Pastores erant; Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052f21118bfba55f32bde4dee96eb631aa9056abc4c55f185237f844ca4b7035. 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/DEB110600802.
Oratorio de Noël, Op. 12: No. 3 Expectants expectavi Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35966331293852aca1e446c004ab7c78463465bc171b0a3d229e1fe6f7004fa. 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/DEB110600803.
Oratorio de Noël, Op. 12: No. 4 Domine, ego credidi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec0811a2bf5829ad6aaf8f1e7f26e27e921bab83e669ad49ba8701bdc8fa0cb. 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/DEB110600804.
Oratorio de Noël, Op. 12: No. 5 Benedictus qui venit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0156dd1e594dd784d3c4088bfa4a2fd2cd4831fe83169a5d83b2be31b20e3e69. 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/DEB110600805.
Oratorio de Noël, Op. 12: No. 6 Quare fremuerunt gentes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaefc14191e82632ad5bb2e6eb338334cb08e0ba75e6a7708166011ed7c7cfb. 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/DEB110600806.
Oratorio de Noël, Op. 12: No. 7 Tecum principium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99c8ee91ef161525118cb8820ad610c92bbb569c6ba3247bd27a53be8a72e85. 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/DEB110600807.
Oratorio de Noël, Op. 12: No. 9 Consurge, Filia Sion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c1b7886ff6ff230f49f83c9514cd76e97184ef6f3e535d223c2253fe706346. 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/DEB110600809.
Oratorio de Noël, Op. 12: No. 10 Tollite hostias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4237e6dc62a84bf416460cea8da7d829f5dbde2eee142ec501f6fa288ba3c655. 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/DEB110600810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbc16bb3b7c9707c35005223edb6e7e79dcde7e0d6c5e8e9ee37023a187aa90. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEB110600813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4b1befc14dde905b511b811eb68e6f54cae45c344a759049a391ccc3920546. 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/DEB110600815.
Oratorio de Noël, Op. 12: No. 8 Alleluja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868612a7c29bf69dcb6731d9f1689b7afa235fcfa642ff1aa4e466fd7b6f8400. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:51:24Z), 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/DEB110600808.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd27afd94e0c703f90388e287d555f72681f4848b9cab519a71dcd0eaae4aa. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEB110600811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2e34802d122f92d832d6ab25a1f4846c6de13cc783f2c9474a75f4ef8d2079. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEB110600812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18460ee33939f00aaec74fa0b0462370d86032be246b370d348cfd3eba82691. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEB110600814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c442cc1effd4b4f3f70aad1f668be7269f15e7cef97c6b7ac9b6f0acc3ca20. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEB110600816.