John C. Williams may refer to: John C. Williams (economist) (born 1962), American economist and central banker John Carvell Williams (1821–1907), English nonconformist campaigner and Member of Parli
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 0xc103b9352fca89bf2c40652f9b25095889c230cf7274d189f9ed421c58e977a0. 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/61051f93-b105-4be4-9043-8e26b2b499d1.json and https://artists.proofprofile.net/proofs/artist/61051f93-b105-4be4-9043-8e26b2b499d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Decaméron negro: II. La huida de los amantes por el valle de los Ecos
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 0x85f6f00bd6d827349246c462205fa4e03ed21e608c5c6aa8393f44eb010cab4f. 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/USSM19701458.
John Williams: The Beginning of a Legend, Vol. 3
Sor: 20 Etudes & Variations on Theme by Mozart
Goss: The Flower of Cities - Houghton: The Light on the Edge
Echoes from the Past: The Guitar Music of John Williams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9048d89ff1249a31d7ee45e99ca9b174891529285505f5cc16f1e24a79e6df6. 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/GBE3A1205422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda91fc9623c572625af4bc7d142a74100ae5daaa272ebb2bb7146da466b31112. 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/GBE3A1508011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65991be1a7bbf8641e75ede4ef14d69a3c4813fd5d7acbb216e0b9a23691a951. 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/GBE3A1508021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaefebbce543c5f8cbf222b81eb42809fd204f521ad498588ae8be4b638f771a. 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/GBYJB0800001.
The Beginning of a Legend, Vol. 2 (1958)
John Williams & John Etheridge: Places Between
El Diablo Suelto - Guitar Music of Venezuela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35705ffaee626648a153bc6752148b2fcad35fa8a5d4d59227e2c0e833910620. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10307602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341e080ddead9f0f60b7122a63bb133a2b49edf14f40f6ba84928e40b6abee0a. 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/USSM10307607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a53b99cfcc51375feaf6511cbe8e2df1557cc94fb682140ab07e980dc50cd3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10307608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa3d3903a9d42830f95c8e252e17dfeb3fe913ab59715b174f9b126e5365046. 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/USSM10307617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373efd21610b681641e5c52f81cff16341a22eeb763144898f9557ae4b4066f9. 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/USSM10307624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d37aeab66e5a63d420cb263dbdb0efe1a202c83efa4cabff74e0cb9feb0ae2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10307604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2266f20b682f0c224a58cfa63dad7d837b69d4177fe39dd5ed32f339e902edc7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:52:58Z), 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/USSM10307619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaede726ff3fc0434a360bd678f42fdc1b6002bb2c42c6ce74bb75d3c79b3bf77. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM10307605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ea9f8fd5fe49d279ac8da28783846c2769baec24580ac3413dc92b4201301d. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:41:18Z), 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/USSM10307622.
Suite Española No. 1, Op. 47: No. 1, Granada (Serenata) [Arranged by John Williams for Guitar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cef43802594594078e6c8a3ffd290454e916345d870542216dae7d2086feafe. 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/USSM18000291.
Violin Sonata No. 2 in A Minor, BWV 1003: III. Andante (Arranged by John Williams for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa423592f8e63e097fd01f5d87b84a3e11e38e176b996d36779e8d00463d1d235. 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/USSM10101682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926e91b8ac0265226bd2732f6a1a20c29fba61b4705d165dab7371086aea5e9b. 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/USSM10100563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b73bf4319c7cf84fb4e78b6f2203345a5134df266f96692f5fa767638346a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM18600244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c031e37a5479102c2c41d3226934d9ba14c7af0a0f672280032a0159e67721. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18600247.
Rodrigo: Concierto de Aranjuez & Fantasía para un Gentilhombre
Schubert: Arpeggione Sonata in A Minor, D. 821 - Giuliani: Guitar Concerto No. 1 in A Major, Op. 30
Arpeggione Sonata in A Minor, D. 821 (Arr. J. Williams for Guitar and Orchestra): II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf9b7de084846c9c06b57108f429b4757eb3bf33d38a200efbe51ebc4709c4a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM19806048.
Kiss from a Rose (From "Batman Forever")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06babe55e57e4bf4ec8c57bc1a6a7bb30eabd727c789975c7a22988b318ad0ce. 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/USSM19602684.
Moon River (From "Breakfast at Tiffany's")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3f650f2d8abbc4cc9c9d49a883482dab720d47a9b51911332c34645fde63e. 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/USSM19602689.
Harvey: Concerto Antico - Gray: Guitar Concerto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73e921df40b3845530b7d8ae64d9a94321d3921f09756ef4f1d55acab4c4937. 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/USSM19503171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2342a83285e8662e7e09728320abaabd0e6705b561b60ff4d4903529b094edf0. 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/USSM19402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2342a83285e8662e7e09728320abaabd0e6705b561b60ff4d4903529b094edf0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM19402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f9494e9c88786b09bfd0cf0d09805cd7021f63a641e2f7de93d45a6f3bdca7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM18200407.
Chamber Concerto in D Major, RV 93: I. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3567c3e320cf19f05cf13cdbdcb29fb055efad7eee9784201baf5f52e505b4. 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/USSM19200793.
Chamber Concerto in D Major, RV 93: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c58f971023f5305fd66c09eb2c7e4bc606e17234405ae08ee01fa89617f4880. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM19200794.
Chamber Concerto in D Major, RV 93: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7ecc2fb6b9f53dfb4494b2cbfe4311aa39e538485f2ce2c5720f0cdf667d6c. 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/USSM19200795.
Suite española, Op. 47: No. 5, Asturias (Leyenda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8895373d9195fd63ff9234e62cf56d4cf2b3dbe451ae46bf6a653b827e823d53. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10400799.
Takemitsu: To the Edge of Dream, Folios, Toward the Sea, & Guitar Arrangements