8P can refer to: Barbados, International Telecommunication Union (ITU) prefix 8P Pacific Coastal Airlines, IATA airline designator Trade Air, IATA airline designator 8p, an arm of Chromosome 8 (human
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 0x6d2bb103c152848875b98d6e8d2c05aef00aa98d27870a5c7840de62a731664a. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1d8e1fa-b7fc-4f7f-955a-a3a565dcfa56.json and https://artists.proofprofile.net/proofs/artist/a1d8e1fa-b7fc-4f7f-955a-a3a565dcfa56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).