The sealed exam on two BitGraphs, 24 October 2026

A sitting is two BitGraphs. A binds a request naming the public bank; the twenty questions are derived from A's nonce, which nobody could see before A existed. B binds the answer sheet, which names the paper and A, at a later count, and is carried into a Base transaction seconds later.

The sitting in demo/: claude-haiku-4-5, 24 October 2026, BitGraph #14 → #18 (enclave v13), Base ceiling block 53041769, ACCEPT 14/20. Its epoch opened with a Base genesis transaction.

Verify it offline with nothing installed:

unzip BitGraph-Sealed-Exam.zip && cd BitGraph-Sealed-Exam
node verifier/demo.mjs
node verifier/exam.mjs verify demo/claude-haiku-4-5.exam
node verifier/exam.mjs selftest    # 28 self-tests

The 19 October sitting (BitGraph #102 → #104, 12/20) is now in archive/2026-10-19-sitting/; it and the September and 7 October sittings verify exactly as they did.

SHA-256 of the zip: e99d692e33c3dc2171f07b365be89cc57fa844de67e29115f654d3be964ac57a