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 0x74af51fee276f1190c419f4a2b3a3371558e0a0ebd280722204eec34b1df262b. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdd73beb-901b-440b-8c85-ed8a428df5f1.json and https://artists.proofprofile.net/proofs/artist/fdd73beb-901b-440b-8c85-ed8a428df5f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Massage bébé Shantala - Musique relaxante, apaiser avant de dormir, thérapie anti-gaz et anti colique, sons de la nature, réflexologie pour nourrisson