P6, P-6, or P.6 may refer to: P6 (microarchitecture), a sixth-generation Intel x86 microprocessor microarchitecture POWER6, a sixth-generational IBM microprocessor microarchitecture p6 protein, a p
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 0xdcce245b621a25ab84a2f7094b024440d3820f78dfc92476ca465825d36865bf. 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/596c471b-88cc-485c-92d0-47b71c7d4aad.json and https://artists.proofprofile.net/proofs/artist/596c471b-88cc-485c-92d0-47b71c7d4aad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).