Rita Engedalen (born 17 December 1971) is a Norwegian blues musician (vocals, guitar) and songwriter. Rita Engedalen and Margit Bakken were top billing at the Sunflower Blues Festival in August 2015 i
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 0x57c87749381b8ce6f616c69e8ca6df23050f2ea2ff2937ef1f5f86632b451492. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a590f10-d612-4f6a-85a0-81e1daa0134f.json and https://artists.proofprofile.net/proofs/artist/5a590f10-d612-4f6a-85a0-81e1daa0134f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).