Sidestreet is a Canadian television drama, which aired Sundays on CBC from 1975 to 1978. It stars Sean McCann and Donnelly Rhodes as police working in Toronto. Background Sidestreet succeeded The Col
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 0x9973743c0fbd33bb75b5a7c719a32c0cb9d7ff4c1de45fee5be4e91e1ccc0dbd. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0704336-9ea2-42a4-b341-c96e707c6a85.json and https://artists.proofprofile.net/proofs/artist/f0704336-9ea2-42a4-b341-c96e707c6a85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).