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 0x84e5d9a83947d3cb3a92185ed8c9124a6ce9f34ecfe33d48ca085d93857be41a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe919aa6-4bac-4a4f-a9bc-ba0a41efb0fa.json and https://artists.proofprofile.net/proofs/artist/fe919aa6-4bac-4a4f-a9bc-ba0a41efb0fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Te Deum in D Major, HWV 280: I. We Praise Thee, O God
Handel: Funeral Anthem for Queen Caroline, HWV 264 & Te Deum in D Major, HWV 280
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 0x5ec3fa5ad7a30ec150f375051f3cb6225d16aedf490c2404212d7ca0dc7528ef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEB209324413.
Funeral Anthem for Queen Caroline, HWV 264: V. When the Ear Heard Her
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67a27086c658285fa7b0e6c5614a3954665ba97a901eae4879f2d2d0cfc0d7d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEB209324405.
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
Funeral Anthem for Queen Caroline, HWV 264: VIII. The Righteous Shall Be Had
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fe4ea96a959458308142e13bb04bb8160a71ca1db0bb94bfba72a16a404ccc. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEB209324408.
Funeral Anthem for Queen Caroline, HWV 264: XI. They Shall Receive a Glorious Kingdom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fccef10f50b2d753243f64491d4ccc414b8cc606c016f066b265d3b4589bb6. 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/DEB209324411.
Te Deum in D Major, HWV 280: II. The Glorious Company
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c85aa9dce681d4a8a1245266e56e89fa355da95df45a0d1905a0f76d7e884a. 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/DEB209324414.