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 0xf611b5fe08f0c8ce546d0d2e8f2728a42c7ef303393dc3b301e3b0ac08fe16ec. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0be88fb-66d5-41d3-a14b-58c7b79fee26.json and https://artists.proofprofile.net/proofs/artist/f0be88fb-66d5-41d3-a14b-58c7b79fee26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mitmach-Konzert Medley: Hintern wackeln / Spring wie'n Känguru / Piraten / Cowboy / Stark wie ein Tiger / So a schöner Tag (Fliegerlied)