Roadside Monument was an American math rock band from Seattle, Washington, who were active from 1994 to 1998 and then again from 2002 to 2003. History Before Roadside Monument began, singer Doug Lori
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 0x4c5b1134dfed077db3ca5d5827c42751c43df39403a7c7edc1d061ef151e389b. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3adc7231-5008-4214-b78f-d9e1d1cdeaf5.json and https://artists.proofprofile.net/proofs/artist/3adc7231-5008-4214-b78f-d9e1d1cdeaf5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).