Untoten () is a German band based in Berlin. It was founded by David A. Line and female vocalist Greta Csatlós in 1994. The lyrics are written primarily in German and English, supported by female voca
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 0x5edf1135e05eb3574e5eb5574dde112e487cb51c2a82d262127b11e751a3aa56. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d2427f4-4052-45b7-b591-ed4e9112989a.json and https://artists.proofprofile.net/proofs/artist/0d2427f4-4052-45b7-b591-ed4e9112989a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).