31Knots is an American math rock band based in Portland, Oregon, United States, by guitarist Joe Haege and bassist Jay Winebrenner and drummer Mark Walsh. It was founded in Chicago in 1997. In 1999 th
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 0x7012183c39e6256635f610fda5c9c08659cb87b61a5cdc4e2568cf95647fe302. 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/4dfcf13c-b426-42fb-aa12-d2174e7e660b.json and https://artists.proofprofile.net/proofs/artist/4dfcf13c-b426-42fb-aa12-d2174e7e660b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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