Joyce Irene Grenfell (née Phipps; 10 February 1910 – 30 November 1979) was an English diseuse, singer, actress and writer. She was known for the songs and monologues she wrote and performed, at first
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 0x93c6d4f83d66574a3faf0037950c90bf100cdf2d9a542ccf6456089c2717a51c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/923336e3-4b49-4979-97e3-5c09a63d70cb.json and https://artists.proofprofile.net/proofs/artist/923336e3-4b49-4979-97e3-5c09a63d70cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
George, Don't Do That! - The Best Of Joyce Grenfell
Requests the Pleasure... An Intimate Revue
Cocktail Party (Live On The Ed Sullivan Show, September 30, 1956)
Nursery School (Live On The Ed Sullivan Show, September 30, 1956)
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 0x002d8a3d952e3a60097e267bfc10c67cba6d402ffbd1fcde1a3c2c1fefbc3cd9. 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/AUXN22020026.