John Hughes may refer to: Arts and entertainment Literature John Hughes (poet) (1677–1720), English poet John Hughes (1790–1857), English author John Ceiriog Hughes (1832–1887), Welsh poet John Hughe
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 0xb00c64a85d896a09fc8b268934d3a559a665285b7f8397f9235ccd22db60cdad. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b78be7b7-a2b4-4710-a4f7-03a5da71f1ce.json and https://artists.proofprofile.net/proofs/artist/b78be7b7-a2b4-4710-a4f7-03a5da71f1ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guide me, O thou great Jehovah (Cwm Rhondda)
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 0xf6e2d2ae7c80a298f7b99ed2f9244acf7d5df5df64fdf19278311163562f8e1c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBF076441405.
Guide me, O thou great redeemer (Cwm Rhondda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dbce38247af631701af2b907d361bc7bfcbc07fd9471ade2703351d24a5d09. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBAYC9102601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b0cc118f070c870f34b34f19fbcf0c59843570d2fbaf965802ea36fd49d2bf. 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/GBUM71101223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3a5082e13c404fd70d0b07c74f50cb4ef1bcd04a82fadcf37ba8fababc36ff. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEN961300830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c11190c50d0a73f530b0abbeb4d094bd927fea6040f97855be44b0b8e3e9e79. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEF059930410.
Hymn - Guide Me, O Thou Great Redeemer (Cwm Rhondda)
The Choir of Her Majesty's Chapel Royal, St James's Palace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57680d4585e353831039a87348aac177d279fa560308101949f25390da5d4f1f. 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/GBUM71103302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9411210c41948850550adcb123a1f3ebc8cdc2c358106b6746e68b7238c12583. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6639976010.
Guide me oh thou great Redeemer (Cwm Rhondda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53023baa6ee8762c002d10a374b5427bcf18f0a5c54a047701d2c942d739293f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBCLS9902068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79058fbca7105b304d8c2f1905b2253d560098eb1057c385479c28a0fb94a92d. 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/GBUM70706983.