JR, J. R. or Jr. may refer to: Arts and entertainment J R, a 1975 novel by William Gaddis J. R. Ewing, a Dallas television character JR Chandler, an All My Children television character JR, a 20
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 0x9b666af7c5989f164abb46cd3328ec3595c69b3950bfc3f603f4ce81b240341d. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1512b89-b7eb-4366-856a-09b0deb39a51.json and https://artists.proofprofile.net/proofs/artist/c1512b89-b7eb-4366-856a-09b0deb39a51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).