Gassenhauer nach Hans Neusiedler (1536), commonly known as GassenhauerThe title is a colloquial archaic German word originally meaning lively pieces of dance music, and later used for popular songs li
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 0xf02457dcbc4eb68afe7ecc8a6092a47ec5f87c703dd74ae619a0d832ed4d284b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b6bb859-e7ab-49a7-a714-05296ca6e7b8.json and https://artists.proofprofile.net/proofs/artist/6b6bb859-e7ab-49a7-a714-05296ca6e7b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).