Junk may refer to: Arts and entertainment Junk (film), a 2000 Japanese horror film J-U-N-K, a 1920 American film Junk (novel), by Melvin Burgess, 1996 Junk, a novel by Christopher Largen Junk: R
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 0x663e7b14162dd12e23002a3cdc09c16c1bde1bdb3dcbaa6d6eb3b938465a0fd4. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44e9d696-f825-45c9-a7ed-7a4bd8b0df87.json and https://artists.proofprofile.net/proofs/artist/44e9d696-f825-45c9-a7ed-7a4bd8b0df87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).