Spider Mountain is an mountain summit located in the Glacier Peak Wilderness in western Chelan County of Washington state. It is part of the North Cascades, which is a subset of the Cascade Range.
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 0xbc6f3038902c9e78a7a1d04ed8dbef75044b40dac4572c576b1ce04bfc21b831. 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/704e0e90-54ee-4f31-8d4f-827b0ddf8be0.json and https://artists.proofprofile.net/proofs/artist/704e0e90-54ee-4f31-8d4f-827b0ddf8be0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).