Robert Woodcock (bap. 9 October 1690 – 10 April 1728) was an English marine painter, musician, and composer who lived during the Baroque period. He is notable for having published the earliest known f
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 0x983834d209a7c40ab4d7550ad3c4747a870e748d111e09c96bfa3a452255fe36. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5da44d2-515a-4652-bb32-4e643f6854f5.json and https://artists.proofprofile.net/proofs/artist/d5da44d2-515a-4652-bb32-4e643f6854f5.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)
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 0x4d45962d219aa068a1bb50d6f73c8ede28eb76ea3cf3ff03fc930ddb57c286b6. 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/DES382344001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23698f59886a25533d731db57d8e583b0543537e55df646dab1df55474e5e824. 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/DES382344010.
Sammartini / Baston / Babell / Woodcock: Recorder Concertos
Recorder Concerto in F Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2309a70923edc7269f84eaf0266aac7c87df24bc355d1644e72fcffda24e7a5a. 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/SEAEJ9885010.
Recorder Concerto in F Major: II. (Siciliano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78e0ee34fe070a258be1296de19db7996fd8ae2d19fc94678ace17dd10e0953. 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/SEAEJ9885020.
Recorder Concerto No. 2 in A Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014d03430fed8c3419a0aeb310cb334c5c872bedc86e4ed6f2608e5f9d153195. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/SEAEJ9885130.
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
Pergolesi / Vivaldi / Woodcock / Blavet / Leclair: Flute Concertos
Flautino Concerto In C, R.443: 3. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf401691e73794e28e700a858590afded46fd85f394a28886bd683e361af1f38. 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/DEF056201603.
Concerto for flute, Strings and continuo No. 9 ein E minor: 2. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe99fbda3438a9e8942e08681d3565eed9e502de3ecca6b48f272ef159c6afb. 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/DEF056100802.
Concerto à 4 parties in A minor: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf613c07631e349eb92efa79c922c6c02563509d31c0b3da7719d4abf0562ae4. 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/DEF056602621.
Concerto for flute, Strings and continuo No. 9 ein E minor: 1. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5da1532f3e7ae2458ec312d11c121978c7397cc13ea53f9233cd4c7c4fe34a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEF056100801.
Concerto for flute, Strings and continuo No. 9 ein E minor: 3. Allegro (quasi Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83761d95048836f2c2507ae329f78a1c3576141ec2c326911b09bd9d282e2c43. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056100803.
Les flûtes d'Angleterre: The Delightfull Companion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6393d0ee43da89f837b587cda294febbf706f136e67ec8a7999bdcf863f5be6c. 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/BER180122002.