Seren may refer to: Seren (name) Seren Books, a Welsh publishing house Seren Network, a Welsh educational organisation to assist high-achieving sixth form students Seren, a lord of the Biblical Ph
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 0xc504dad24fba9da05b852cd16866b16b77ff8bcf68f4e1fdc47c990370b0efe3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9fbbe02-4c6d-47a5-ba66-9bd31996c85e.json and https://artists.proofprofile.net/proofs/artist/c9fbbe02-4c6d-47a5-ba66-9bd31996c85e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).