Katherine Louisa Ryan (born June 1983) is a Canadian comedian, writer, presenter, actress and singer. She has appeared on British TV and radio panel shows, including 8 Out of 10 Cats, Never Mind the B
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 0x13855d98aa6ea389c6bf2ca2491146ca5b8a495153a5ca9eccecc22b38d1fcb1. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0094d65-adb2-4ef8-8b40-9a56f5e8cbe1.json and https://artists.proofprofile.net/proofs/artist/b0094d65-adb2-4ef8-8b40-9a56f5e8cbe1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Glam Role Model (Live at The Bloomsbury Theatre)
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 0x5dec63cb7394fe50230ef1814fcbc4d3e1e658f4194352bcd9cc832507fc87d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UK5BC1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443ec409794d247a294520552bd1e7fae8c9af0041d394e7a2b20cda2097bbbf. 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/UK5BC1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671530580d630ffb425f1ef46ee0a31cd55fe05838012e04973667311ab22250. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/UK5BC1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cf2dd9dc00fe1e9259cfcdf7800aa4f1733fd75497ad389e37094ac6dec7f3. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/UK5BC1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ad65715f27d3ce67f366e85cfde21cc7dd18bebf4bc7aa37811c1040951882. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/UK5BC1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98ead398fa3d0a13df96108e3af1e37220545013ecb7bb22d76133c92c88918. 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/UK5BC1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c5460428241f4f7dc70f509b4bfcacd4b79ca91fee35716ad18ad4b8871680. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/UK5BC1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564abfe55d5115ac892bf12870ab8631d4a0940b3cc1ac25cd1b5fd463bc3ad0. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/UK5BC1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8537f606769a7317b6c4278182038235a1bc5d7289def5fbc993992dc80cdc24. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/UK5BC1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715d641425da9f0e3cdbb2d302c21663eb694d7edace9e37a98ea779fe443d63. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CABXX1800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27573898853413da8a26ee23270cf102222859cfb77ee0124078eb1e0c1b2509. 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/CABXX1800261.