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 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 0xee2fe14242687469fe901d2b60aecadf622be63cbdde77c776c37cfd79f25213. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8379d202-77be-45be-954e-4ab6479139bb.json and https://artists.proofprofile.net/proofs/artist/8379d202-77be-45be-954e-4ab6479139bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Dettingen Te Deum: I. We Praise Thee, O God
Handel: Dettingen Te Deum; Dettingen Anthem
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 0x3b865ab568dd928610086477dad53317431c4236c25bfa70a504bad5ee676419. 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/DEF058230802.
The Dettingen Te Deum: II. All The Earth Does Worship Thee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3559dd5bb60307b3724f6f32404bbbf2eb5a56fe50fbdf22f898967268a259b1. 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/DEF058230803.
The Dettingen Te Deum: XI. Thou Sittest at the Right Hand of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d742ca2944d001478f43fc22e544833e570e6bb049cba7679dc05c9a8c94c47. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEF058230811.
The Dettingen Te Deum: XVIII. O Lord, in Thee Have I Trusted
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69265793a1de72fa77c9fc3c0865cc24d6255747aeb61c00c973c29dddb6b67. 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/DEF058230818.
The Dettingen Anthem: II. His Honour Is Great
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7d49473e580bdb44b0353580b45c5350b7846ff411989b07f7fab632bb47f8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEF058203982.
The Dettingen Anthem: IV. And Why? Because the King Putteth His Trust in the Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb27bfe6719696878799848cbb11c841fee021d53a6d5356abba0cb6927a491. 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/DEF058203984.