thumb|Grimstad at Sear Sound in New York, 2025 Paul Grimstad is an American writer, musician, academic and actor. Early life and education Grimstad earned his undergraduate degree from the Universi
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 0xfed576fa10fcefcb6dec46a1b3632bbad730aeab6946579a6dfaa447b0535f8a. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc521567-49c2-4016-8f2d-c2962260399b.json and https://artists.proofprofile.net/proofs/artist/bc521567-49c2-4016-8f2d-c2962260399b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Evening Mirror (From the Original Score of The Sweet East)