Jeremiah Clarke (c. 1674 – 1 December 1707)Gascoigne, Bamber (1994) Encyclopedia of Britain p. 653. Macmillan. was an English baroque composer and organist, best known for his Trumpet Voluntary, a pop
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 0x39b0b498fb3a1803a97707f9c0e39c7b1a14bd5e4ef02fe3e4eed853fb38b3d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b7908df-51e9-4205-920a-c9ad7818da67.json and https://artists.proofprofile.net/proofs/artist/7b7908df-51e9-4205-920a-c9ad7818da67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Orpheus with His Lute: Music for Shakespeare from Purcell to Arne (English Orpheus 50)
Fairest Isle: A New National Songbook (English Orpheus 47)
Trumpet & Organ Spectacular at Sorø Church
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 0xfea6efc24b38683352b5e0564fc1b829d9a2a1443b22f1f2dddea19e7f9ff5f2. 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/NLA509009502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f24b240f1cd1df007d24e1cf64f68cbc4a0226eab7e6ca507c72f33102f002f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBJ2F1011053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f528bc36ba4b05214215a903562868d07943c8140c78112b191b4fa2563386. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBC7N1045810.
Suite in D Major: Rondeau - 'prince of Denmark's March'
Trompete & Orgel (Festlich - Besinnlich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dfbb48936689f18c496c3f54abc8ef1c6eaae73fb80dcfc51c6122d23df21b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEHY11200655.
Suite in D Major: Prelude - 'duke of Gloster's March'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1913ba097e515a08d8a646313390c0c305b46c25bd24f2c3ee5b0404b95dec4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEHY11200652.
Clarke: Suite in D Major: Prince of Denmark's March "Trumpet Voluntary"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1241f8cace4bb57565214b55c07557f5d49a66a4ebe9c63af0bd222e0af5a9a1. 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/GBAYD8600523.
Clarke: Suite in D Major IV. Prince of Denmark's March "Trumpet Voluntary" (Arr. Antonsen and Marshall for Trumpet and Organ)
A Classical Coronation. Music for a Royal Celebration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19847cd7e24cad43df093240eb09b89ca2e3aa88d811ed6aa2b706d563aab72. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9202711.
Trumpet Voluntary in D Major (The Prince of Denmark's March)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfa3f7608971384a775a519047ddef9e70c00927c2e0923126191835f23eee1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0749710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2356571d33e1d5133a8607725e0df6d86fb7f529bcf6940ca6847b1b259df153. 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/GBC7N1040608.
Suite in D: 4. Rondeau (The Prince of Denmark's March)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b890586ba1d33a501b2313c1036204e8b46b3348745578d34a442817521069. 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/NLA509009506.
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 0xa20808dc601ef4ce09ddde071cdb84339eee7303cdc0989638a296b20db8d57b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLA509009507.
The Head That Once Was Crowned with Thorns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd358f23aee3264795674354d6486c5493c440273c84a35a2b0946f0b81467dce. 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/GBXUX0701821.
Suite in D: 1. Prelude (The Duke of Gloster's March)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc080ed013462cbaef1c042ab53476babf32f4a44a0728fe711292f7f6f82486f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLA509009503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5afcecc4f222c83811a848599fe4b4d8ba21f5237e6dbad6afd09d16706d19. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/DEHY11200659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68c2b70e8403a317068f287501abffeb1e2aebea5cf1aeea89bfc03521cd7f8. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/NLA509009504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaea10462c8a74e0dfea008d56cc99307b430df3b197888c7d71616587c28669. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509009505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d58ee4025514f5d98b2269b0bd1a03439253727ff0eba954e70bf52fe7d1571. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEHY11200660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8d6bca2a5c4e7b735a0c19b7542cd1fe9556345f224af1d574558bb3609717. 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/US4EB0935106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cd704340cf86ae97e3d28b0f39822ffe5f3335ac9b5d9214fb970b633bbeb5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509009508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5d52d1f35118bab1d83f0e3fbf4925d67e864c9b3777e2b4b66e4a2fbd29ce. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NLA509009509.