Alden may refer to: Places United States Alden, California, a former settlement Alden, Illinois Alden, Iowa Alden, Kansas Alden, Michigan Alden, Minnesota Alden, Oklahoma Alden, Pennsylvania Alden, N
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 0xbf0ac303302a3a0b508c888d65f8bd55b9cce1157d81a6164e63e1d70509ae99. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0e44ebc-ed20-4d8c-8ada-c68aa0fa3e9c.json and https://artists.proofprofile.net/proofs/artist/f0e44ebc-ed20-4d8c-8ada-c68aa0fa3e9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).