John Jones may refer to: Academics John Collier Jones (1770–1838), English academic administrator at the University of Oxford John Winter Jones (1805–1881), English librarian John Carleton Jones (185
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 0xfa60bca56dbda7bb03750fe04d40bf64ca12762cb004d29456ebff8a79bb5240. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1be49bf4-c694-4e0d-bb42-ca280894e526.json and https://artists.proofprofile.net/proofs/artist/1be49bf4-c694-4e0d-bb42-ca280894e526.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x82901f30e00c555af2a170241331c9e6c3908c89f0a4774e6a557f8b6ad52cc6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USL4Q0744521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fb7946a6107278c07fc7fe9a96f726192a833c24dd9fb3025a7eb0cae94b58. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q0744523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07158baf8e296924849c2fea178c2ed358cbf4a714593e3f2a780ed6e6788ded. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USL4Q0744525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bad87abd76d0d01b779bbf8a9a6c696abc2c2397bb0fe405de41f8fc23e260a. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q0744526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd591415ecd5220193b8e279ecd76a1d1b7b3e844e87da55f146f2fde1508cdcd. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/USL4Q0744531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3957242ae393207e8028554243d3b6fd0588ad526051976aae42b8a68b9fc636. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q0744532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f20f8cdfd3dc24746ca400b4f2e578d2c282dd0adc76a7ecc325db393c35559. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USL4Q0744533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5c2fb1ab9427872872f2d0c8c72a3e690093167ffbbbbbd6593511eff0db85. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q0744537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73516edd962e0f427f8f1fabeb93141dfdd14b93374d61b8ada1521b3d2f67f2. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/USL4Q0744540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539138cd62d086852225c4066acce0f1035b1edb8c1e4dc46744ae18a1072b57. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q0744541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa206af0470693a30f2283494dbeead7178070eafd1a7be12feb1c1e3164aca. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USL4Q0744542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32767b2d39ea081b11ac622d5a67e22a05b16c11ea2327704c390ad2d95dca0d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USL4Q0744544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee06ab8dc63ea7870d93da6f297c136105104e7cc2e1525a0ba0a56aeb036cd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USCGH1336992.