The Open PINO Platform (or just PINO) is an open humanoid robot platform, with its mechanical and software design covered by the GNU Free Documentation License and GNU General Public License respectiv
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 0xba74bcf0b6d4c625e7cbb2ad1005fdd1aedd635eb1c328355c9a80adee8a854f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a77b8b3e-5b48-44b6-977e-e75b401f684f.json and https://artists.proofprofile.net/proofs/artist/a77b8b3e-5b48-44b6-977e-e75b401f684f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).