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 0xae0c5a05001100c4a150cac92228633dfaf57f74936c3ab35132160f25d132d1. 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/4d2dbdb9-9d6b-480b-81d9-94f22136d0cb.json and https://artists.proofprofile.net/proofs/artist/4d2dbdb9-9d6b-480b-81d9-94f22136d0cb.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Handel: Dettingen Te Deum & Te Deum in A Major
Dettingen Te Deum in D Major, HWV 283: We praise Thee, O God
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 0x8bbda494a201dad60dc1b9a5338e87e994a65451f61006c8248a6d2bd21afc8e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199930801 — a six-check JSON result.
Dettingen Te Deum in D Major, HWV 283: To Thee Cherubim and Seraphim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ab58fd0270e2fe7d521d68c5441265d8ce34bd6b90b909438954b324028a9a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199930804 — a six-check JSON result.
Dettingen Te Deum in D Major, HWV 283: When Thou tookest upon Thee to deliver Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe93d67c30eb06c668c324a79420d9ba92671d7208dc770473e3fbe58946866. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199930807 — a six-check JSON result.
Dettingen Te Deum in D Major, HWV 283: Thou sittest at the right hand of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5cf854268312ad64139cb2a3e52a1f1a5e8b6bae52e8109356f7397c186820. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199930809 — a six-check JSON result.
Dettingen Te Deum in D Major, HWV 283: Make them to be numbered with Thy Saints
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5c1b186cd09dcd884116b0eb9cf6377c74e8333695ba7b87dc20920702127d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199930810 — a six-check JSON result.
Handel: Funeral Anthem for Queen Caroline, HWV 264 & Te Deum in D Major, HWV 280
Funeral Anthem for Queen Caroline, HWV 264: I. Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ca0db8c6c3228b4aa7ba27a1d848a183f8ad8d51c58d961c8536686774b00. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324401 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: II. The Ways of Zion Do Mourn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9015a730fdb44d67b8935677f8255d4a629c2366c2ca6e08a4b4811c868adff2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324402 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: III. How Are the Mighty Fall'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf737a7ebc1da115f734203fc1ede91f540e60ffac9b670a20b63d942ea3357d7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324403 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: IV. She Put on Righteousness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c5c15abd26cebd56ea3deaa89ef3370e37472760108bf6bc031e94c281ba62. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324404 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324405 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: VI. How Are the Mighty Fall'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cf9d57c6f965320c7a4f5b2db985ee08d4d49533de3885adbf66003f6eb470. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324406 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: VII. How Are the Mighty Fall'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd345f4932d0a4a64ec472458032fde76d7c239fc4f8bfe8107736e9be442f092. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324407 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324408 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: IX. Their Bodies Are Buried in Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8a55b80b34c35a555eac6db92d9370417ad0736bcc165c20167b489b17d93a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324409 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: X. The People Will Tell of Their Wisdom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd76f14b141ad64a7df9062e38b2bac0631a612c5798dd784e8f7970374f86e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324410 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324411 — a six-check JSON result.
Funeral Anthem for Queen Caroline, HWV 264: XII. The Merciful Goodness of the Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22080b9b0f5821f953768645ffc99f749f73699b1caa530b6fd8c97a90c3d617. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324412 — a six-check JSON result.
Te Deum in D Major, HWV 280: I. We Praise Thee, O God
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324413 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324414 — a six-check JSON result.
Te Deum in D Major, HWV 280: III. When Thou Lookest upon Thee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa536e269e2084d25aec2cfbec26430d68902aaefee6b8583485d1913628901b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324415 — a six-check JSON result.
Te Deum in D Major, HWV 280: IV. Day by Day We Magnify Thee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23eabca620d92e904e6d90db9daf490b1d7ae2347ecf310f8a4027f27400d89f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324416 — a six-check JSON result.
Te Deum in D Major, HWV 280: V. Vouchsafe, O Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760a21ff99b1462ba1261a187e3b103384ffdcbbac4ae3a15a8f415ce092fd89. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324417 — a six-check JSON result.
Te Deum in D Major, HWV 280: VI. O Lord, in Thee Have I Trusted
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bef74c721a1d73706f35ce56f334f2298e3241bdc310823972dbf74907a145. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB209324418 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a87aee43392ba733080cbdd4bf49ebfaf38bd37dd02c47a58a5e33cc165fee3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB100956115 — a six-check JSON result.
Die sieben Worte Jesu Christi am Kreuz, SWV 478: Introitus: Da Jesus an dem Kreuze stund
Schutz: German Requiem / Seven Last Words of Christ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095330c4cba6b91f6a5a472630e3915531ffb453f92a79f26324f4a0abd08eb1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190146905 — a six-check JSON result.