thumb|Portrait by Mason Chamberlin Charles Jennens (1700 – 20 November 1773) was an English landowner and art patron. As a friend of Handel, he helped author the libretti of several of his oratorios,
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 0xc64b9bd6985e3b38101c67c2f9560c037cd20b1cd6c030e4343213f6fdc306bf. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4300ce01-a5e9-487c-937b-ec5b0550863b.json and https://artists.proofprofile.net/proofs/artist/4300ce01-a5e9-487c-937b-ec5b0550863b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Messiah, HWV 56: Behold, the Lamb of 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 0xd2562ee8843cfe626cbac697af052da1ca2a0cb7f35c8584ab7d7750c10fb0ae. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBEJP2118618 — a six-check JSON result.
Messiah, HWV 56: Chorus - For Unto Us a Child Is Born
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a405840e3d3098593148f75f46b09472552887459c8216d9280fc5468251f0. 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/GBEJP0806212 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7fac2564982cd42a075d700403d7f28ff802306058d7e79dd1f3641a937fdb. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBEJP0806201 — a six-check JSON result.
Messiah, HWV 56: Pt. I, No. 4, And the Glory of the Lord Shall be Revealed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7df47674e79ae0cbc30cb83a10c6cb2c8764f4099379d6edf901b93cb7ac80. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GBEJP0806204 — a six-check JSON result.
Messiah, HWV 56: Pt. I, No. 7, And He Shall Purify
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9ddd4f9002ce8fbbc96a54b9945547f46879cba309ee29c279ac98d10b3494. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBEJP0806207 — a six-check JSON result.
Messiah, HWV 56: Pt. I, No. 9, O Thou That Tellest Good Tidings to Zion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855134282dd2abb86cd49b25919c4e8e16c906566f40e511ea94e9ed572cfc2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBEJP0806209 — a six-check JSON result.
Messiah, HWV 56: Pt. I, No. 12, For Unto Us a Child is Born
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a405840e3d3098593148f75f46b09472552887459c8216d9280fc5468251f0. 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/GBEJP0806212 — a six-check JSON result.
Messiah, HWV 56: Pt. I, No. 18, Glory to God in the Highest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ac656d981234f3ca2abf867ab1306236f3e67789ee0b79377622e25493accf. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBEJP0806218 — a six-check JSON result.
Messiah, HWV 56: Pt. I, No. 22, His Yoke is Easy, and His Burthen is Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6388b512e19452144b2ae4b543c028cbb684de3595790e92882717f66efe3f5a. 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/GBEJP0806222 — a six-check JSON result.
Messiah, HWV 56: Pt. II, No. 1, Behold the Lamb of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5f4e96b1658f1afc94a9db2676c27112ae601c257bede513da15d1afdf4080. 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/GBEJP0806223 — a six-check JSON result.
Messiah, HWV 56: Pt. II, No. 3, Surely He Hath Borne Our Griefs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a8838f14008c3eb5ebd68363bfa202d075b935b530cf73d086b9c93c1d3927. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBEJP0806225 — a six-check JSON result.
Messiah, HWV 56: Pt. II, No. 4, And With His Stripes We Are Healed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f326dea668a1de9466308aec027855fbc441f4fd92ae417a7f6267d2349409. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBEJP0806226 — a six-check JSON result.
Messiah, HWV 56: Pt. II, No. 5, All We Like Sheep Have Gone Astray
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b5bc36f415f9bf255cfb1f2a55f3d764629e63dd39f8e35ff1181039d26b6a. 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/GBEJP0806227 — a six-check JSON result.
Messiah, HWV 56: Pt. II, No. 7, He Trusted in God That He Would Deliver Him
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0407896a29fb00e1cc070e15ba61419f5b05b550af879ceb2ae0ec247a6b8e3b. 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/GBEJP0806229 — a six-check JSON result.