Etched In Stone - evidence for EIS-JR-2026-001-e1
Publisher: Jack Roelofs
Record:    https://etchedinstone.watchfireai.com/jr/q/EIS-JR-2026-001/#e1
Recorded:  2026-09-27T22:00:43Z
SHA-256:   b4e52d413d050e91d32937cd330e8ac320a003eafce40a792bf2e94ca0d380fa

Files
  EIS-JR-2026-001-e1.json           the record: the exact bytes that were fingerprinted and timestamped
  EIS-JR-2026-001-e1.json.ots       OpenTimestamps proof (Bitcoin)
  EIS-JR-2026-001-e1.freetsa.tsr    RFC 3161 timestamp response from freetsa.org
  EIS-JR-2026-001-e1.digicert.tsr   RFC 3161 timestamp response from DigiCert
  freetsa-chain.pem              freetsa.org certificate chain
  digicert-chain.pem             DigiCert certificate chain

What these prove
  The record existed, byte for byte, no later than the times attested by the two
  timestamp authorities and the Bitcoin block named by the OpenTimestamps proof.
  They do not prove when the record became publicly visible, and they do not make
  the record correct. Change any byte of the record and every check below fails.

Verify (macOS/Linux; needs openssl and Python 3)
  shasum -a 256 EIS-JR-2026-001-e1.json
      expect b4e52d413d050e91d32937cd330e8ac320a003eafce40a792bf2e94ca0d380fa
  pip install opentimestamps-client
  ots verify EIS-JR-2026-001-e1.json.ots
      prints the Bitcoin block that attests the fingerprint; compare the merkle root
      against any block explorer (e.g. https://blockstream.info/block-height/<n>)
  openssl ts -verify -data EIS-JR-2026-001-e1.json -in EIS-JR-2026-001-e1.freetsa.tsr -CAfile freetsa-chain.pem
  openssl ts -verify -data EIS-JR-2026-001-e1.json -in EIS-JR-2026-001-e1.digicert.tsr -CAfile digicert-chain.pem
      each prints "Verification: OK"; add -text to see the signed time
  openssl ts -reply -in EIS-JR-2026-001-e1.freetsa.tsr -text | grep "Time stamp"

The OpenTimestamps proof is complete: Bitcoin block 968902.

Nothing in this archive depends on etchedinstone.watchfireai.com being online.
