The Cash Brothers are a Canadian alternative country/folk rock duo, based in Toronto, Ontario, consisting of brothers Andrew and Peter Cash. Their alt-country/alt-folk music includes ballads which bl
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 0x8afdc7f17556dda08f3a7a09dd8ccd4b12fda04bf66e820febc3181290e833a4. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c723240-d9a0-4166-9e8d-c775cd08e353.json and https://artists.proofprofile.net/proofs/artist/3c723240-d9a0-4166-9e8d-c775cd08e353.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).