Prelle is a family-owned silk textile mill in operation since 1752. Curators, collectors and interior designers worldwide use their fabrics. The company still has the capability of weaving by hand usi
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 0x6d8a3c839a17ce52efca3cc8044f8783143e341061325e50121f4fb6ca04ccc2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5784d09a-207e-4213-9997-9fcabe1d7184.json and https://artists.proofprofile.net/proofs/artist/5784d09a-207e-4213-9997-9fcabe1d7184.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).