Junior or Juniors may refer to: Aircraft Ekolot JK-05L Junior, a Polish ultralight aircraft PZL-112 Junior, a Polish training aircraft SZD-51 Junior, a Polish-made training and club glider Arts a
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 0x00c92db9371bd0c79423d9a9179c81a2a96426fb9408328802bfedb9c40105eb. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f14375e8-0e27-490f-883a-04521416efca.json and https://artists.proofprofile.net/proofs/artist/f14375e8-0e27-490f-883a-04521416efca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).