Lateduster is an American instrumental music group from Minneapolis, Minnesota. It was most active between 1999 and 2003, with reunion shows in 2005, 2011, 2013, 2014, and 2019. The band's core member
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 0xb9c5558f4d3c285bd9e2c5aac183357a65a0c24ba53dd845d5c392f2a827d659. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9daaa2ba-35fe-408c-bbe0-9c4393a6118a.json and https://artists.proofprofile.net/proofs/artist/9daaa2ba-35fe-408c-bbe0-9c4393a6118a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).