K1, K.I, K01, K 1 or K-1 can refer to: Geography K1, another name for Masherbrum, a mountain in the Karakoram range in Pakistan Kōnāhuanui 1, a mountain in Oahu, Hawaii K1, a small town to north o
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 0xbbdd363dbcb1aa625530f0e4ddb0b47016e7f5c8e86b19965a766f3804ad09aa. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/306dd562-d3c0-45a5-93a5-c02677073f27.json and https://artists.proofprofile.net/proofs/artist/306dd562-d3c0-45a5-93a5-c02677073f27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).