Julie Grant (born 12 July 1946) is an English pop music singer, who was mainly active during the 1960s. She had three hits on the UK Singles Chart with "Up on the Roof", "Count on Me" (both 1963) and
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 0x9ec6a541495b4a57f7d55d85b0ffa76266ccac3a56f5b59445248e34af30634a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5c27594-bf14-43d1-aacb-8cd08a407d80.json and https://artists.proofprofile.net/proofs/artist/b5c27594-bf14-43d1-aacb-8cd08a407d80.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.