Tentation delblush is a commercial apple variety (also known as Delblush) that was created in France in 1979 by Georges Delbard as the result of a crossing of Grifer (Blushing Golden) × Golden Delicio
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 0xd0c88ca65dc6448ccbada96f8101be4022125e4c6b8ab889f87c7b112409b443. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1b02414-05b5-497b-9987-d31a1ec363c1.json and https://artists.proofprofile.net/proofs/artist/a1b02414-05b5-497b-9987-d31a1ec363c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).