Hiss Tracts is a Canadian experimental musical duo consisting of guitarist and sound engineer David Bryant and guitarist Kevin Doria. The pair have released one album, Shortwave Nights, by recording a
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 0x6bc8c9e79edd1feaf98f4db71affee3d4847c7c0d34c525d3c7d9d97f9534d82. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c52dcf1e-1813-487b-98cd-512d2e92687b.json and https://artists.proofprofile.net/proofs/artist/c52dcf1e-1813-487b-98cd-512d2e92687b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.