Jon Robyns (born 8 December 1982) is a British stage actor, who is best known for playing Jean Valjean in Les Misérables and the title role in The Phantom of the Opera in London's West End. Early lif
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 0x8519c388e00f211d5812257956957188a9619f728d6e25924f88009606f7dd1d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79ced77a-2bfa-40e5-a78d-299eccf5c50e.json and https://artists.proofprofile.net/proofs/artist/79ced77a-2bfa-40e5-a78d-299eccf5c50e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les Misérables Live! (2010 London Cast Recording)
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 0x5998f27b4409995e362848bbb9b4be3954a49b628943d0e6a2cce174ff7119a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBKB1021217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5532cd76e84ada495e7b2af1849c80d650978443177a6b3153ebca97054694. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBBKB1021218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7750359a345a408a035477c7118b3525e6a9cf1e416355999bdcee0e45f5eb02. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBBKB1021223.
Stephen Sondheim’s Old Friends Original West End Concert Company
Stephen Sondheim's Old Friends: A Celebration (Live at the Sondheim Theatre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7372e6faaa3659a174f10bcc7643eec09af2f3d9cc2010e171f8bdc7d20a22f. 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/USRH12300381.