N8 may refer to: N postcode area district of north London Number Eight (disambiguation) Nokia N8, 2010 smartphone model N8 (Long Island bus), bus route in Nassau County, New York N8 Group of res
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 0x87876b3751bc901e4b54d99b71050d27da1a5592b6f0474fc530e2206e596c28. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88ca3c83-d255-469b-9163-0bd434efeb95.json and https://artists.proofprofile.net/proofs/artist/88ca3c83-d255-469b-9163-0bd434efeb95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).