The Parley of Instruments is a London-based early music group founded in 1979. The ensemble's co-founders were Peter Holman and the violinist Roy Goodman, who have been the ensemble's two main conduct
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 0x531626216af647d94bdd8790c805c86b3d0f9bb0dad2d0158e7f50d678774711. 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/fbdbeb80-ed89-4879-a9b3-29f087f4eff6.json and https://artists.proofprofile.net/proofs/artist/fbdbeb80-ed89-4879-a9b3-29f087f4eff6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sound the Trumpet: Music By Purcell & His Followers (English Orpheus 35)
Salve Regina: Sacred Music by Monteverdi & His Venetian Followers
English Classical Violin Concertos (English Orpheus 37)
Violin Concerto No. 1 in D Major: I. Allegro moderato
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 0x9a4e125f806c69d4891b720288ea57e7567df8f15c3a0c01ce487cc1ecd21537. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY9686501.
William Boyce: 15 Trio Sonatas (English Orpheus 38)
An Englishman Abroad: Consort Music by Thomas Simpson (English Orpheus 6)
Orpheus with His Lute: Music for Shakespeare from Purcell to Arne (English Orpheus 50)
Handel in Hamburg, 1703-1707: Suites from the Early Operas
While Shepherds Watched: Christmas Music from Parish Churches (English Orpheus 40)
Blow & Draghi: Odes for St Cecilia (English Orpheus 31)
Fairest Isle: A New National Songbook (English Orpheus 47)
Artaxerxes, Act I: No. 10, Recit. Stay, Artaxerxes, Stay (Semira/Artaxerxes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b33f226bdd8a4150e10fd669ca0955780750d4140042afa79b35f0ecbbde59. 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/GBAJY9505110.
Mandolin Concerto in C Major, RV 425: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761fa3234170c96b8dd27b17910b61a914cf76d60378a4cd07d9ea72c77e27c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI199913307.
Chamber (Lute) Concerto in D Major, RV 93: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec200086d26cdeb4dd76dc3484005d5dbc8323fda2f243cb8cc284ba2d9db68. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAJY8516009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761fa3234170c96b8dd27b17910b61a914cf76d60378a4cd07d9ea72c77e27c0. 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/HKI199913307.