260px|thumb|Virgil FoxVirgil Keel Fox (May 3, 1912 in Princeton, Illinois – October 25, 1980 in Palm Beach, Florida) was an American organist, known especially for his years as organist at Riverside C
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 0x0a9a386a513ce0287f525028725303948e4d03fc2d90aaf0dd4df4fb6299972e. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95dc1c09-7b2f-4133-98f6-f0bd10a96a21.json and https://artists.proofprofile.net/proofs/artist/95dc1c09-7b2f-4133-98f6-f0bd10a96a21.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x28d106c064efab915f9b96ec47ddc24c42431318c84242b372319b0248335241. 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/USBC10510112 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70f71730c82f410b9f5fa324ad0f8313f050371d4c487eb70e903e8f1cd7b26. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USBC10510120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5887b817a299c12907252994d04ca9921b6300165ed5f8039e7a78a137177da3. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USBC10510119 — a six-check JSON result.
Air on the G String (from Suite No. 3 in D)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8822f249944e0a01550e24b6a9a5168fc60616269e6d8c133984e71a5863d7. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USBC10510108 — a six-check JSON result.
Musique française pour orgue (Stereo Version)
Musique française pour orgue (Mono Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1408e40166116e690b3069eda08454ead4a04193eb007dcc415c01485f47ae. 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/USAR29601134 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62b9e72e8d27d73dd382056891f6b80a74e3ffba616472db5de19f6e22b3727. 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/USAR29601135 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d201abb18f3a3aa76010b398360062b74dddf5814901942cf1b243528193f. 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/USAR29601138 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c3f66d851bea8d9d20ddb9dd7d381a235be15d78893f6c93fb7e29f8dddfb4. 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/USAR29601141 — a six-check JSON result.
Come, Sweet Death, BWV 478 (Arr. V. Fox)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74694d3fbe782773fb690a712102942168538582906b58f752dfbec38e4b16c7. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USA560441291 — a six-check JSON result.
Masterpieces Presents Virgil Fox: Organ Masterworks
Virgil Fox at Carnegie Hall, New York City, December 20, 1972
Bach, Handel, Boyce, Mulet, Purcell, Schumann, Widor & Elgar
Adeste Fideles (Live On The Ed Sullivan Show, December 24, 1967)
Herz und Mund und Tat und Leben, BWV 147 (Transcribed for Organ): X. Jesus bleibet meine Freude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693d0d98788f740518371d9d23a0274ac885aefb3084c891372353476943a360. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19606728 — a six-check JSON result.
Pomp and Circumstance, Op. 39: March No. 1 in D Major - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1979e1dbe740d49944232544da33c5b91283cff065ed835a9f4da9d0a31ae. 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/USBC10508745 — a six-check JSON result.
Suite in D Major, BWV 1068: II. Air - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1b98ab85173efa3288b8c1c668c6ac3d55856cc4561a24a7f17bfcb5b6de50. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USBC10508750 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f1ad67bda6dfd8b5f89b4441f35b8eb41f611baae8882db932ed4706e773a. 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/USBC10508744 — a six-check JSON result.
"Little" Fugue In G Minor (Featured in "The Paper Chase")
Total Inner Peace: Classical Music for Hard Times
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6280e6a685fab98d9277757bfb30574edcf1586e79312cc4763c4d698fe576a9. 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/USRDG0218981 — a six-check JSON result.
Herz und Mund und Tat und Leben, BWV 147 (Transcribed for Organ): Jesus bleibet meine Freude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693d0d98788f740518371d9d23a0274ac885aefb3084c891372353476943a360. 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/USBC19606728 — a six-check JSON result.