thumb|250px| Jürg Neuenschwander (14 January 1947 – 23 March 2014) was a Swiss organist and musician. He was best known for his work with Schweizer Radio DRS from 1982 to 1989. He was born in Eggiwil
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 0x65981f22d518a17bc950d9f2c968392cde90eeeead414c3e5392e40e0b03e063. 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/49ce9817-1ea1-4a98-ac8a-fcfa9537bfa8.json and https://artists.proofprofile.net/proofs/artist/49ce9817-1ea1-4a98-ac8a-fcfa9537bfa8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).