Uusikuu are a Finnish-German band founded in 2006 who play old Finnish dance music. The band is based in Tübingen, Germany. They are signed to the German world music label Nordic Notes. History Uus
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 0x66976eedc36660cb17b519cb1359029698acdef4b2f4b07f6d1e20d4d4a14483. 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/4a33c0d0-38c0-421e-af33-2a9e7447f4a5.json and https://artists.proofprofile.net/proofs/artist/4a33c0d0-38c0-421e-af33-2a9e7447f4a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).