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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a203d681d82d6b960f8abbad25b904c2417ad42ab41c82d8889be8a26c6652. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e344e787-6fd3-403a-b93f-b834ae847c3b.json and https://artists.proofprofile.net/proofs/artist/e344e787-6fd3-403a-b93f-b834ae847c3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deadline (Live at Seilerei, Frankfurt, 28.02.24)
Liebe bis zum letzten Blick (Live at Seilerei, Frankfurt, 28.02.24)
Immer Da (Live at Seilerei, Frankfurt, 28.02.24)
Eine keine meine (Live at Seilerei, Frankfurt, 28.02.24)
Es ist nicht okay (Live at Seilerei, Frankfurt, 28.02.24)