thumb|alt=Todd Sickafoose at The Fillmore in San Francisco with Ani DiFranco|Todd Sickafoose at The Fillmore in San Francisco thumb|Todd Sickafoose's Bear Proof, downstairs at Town Hall, Seattle, Wash
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 0x842a2ca7384bcde333020322420e1d31ba633d82c53349d9ba273eb529cf8f9c. 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/62a1c32e-5496-487b-abd2-56651e6b34fd.json and https://artists.proofprofile.net/proofs/artist/62a1c32e-5496-487b-abd2-56651e6b34fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Time to 1.5 (Soundtrack to Threshold Season 4)
The Island In Me (Original Motion Picture Soundtrack)