Pith Number

pith:JMGQMJHA

pith:2018:JMGQMJHAPZUUHSGZ6TABUIEMEM

not attested not anchored not stored refs pending

A complete system of deduction for Sigma formulas

Andre Kornell

arxiv:1807.01494 v2 · 2018-07-04 · math.LO · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JMGQMJHAPZUUHSGZ6TABUIEMEM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:59:22.562759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b0d0624e07e6943c8d9f4c01a208c233de060336b24ef20a29846f5673e546d

Aliases

arxiv: 1807.01494 · arxiv_version: 1807.01494v2 · doi: 10.48550/arxiv.1807.01494 · pith_short_12: JMGQMJHAPZUU · pith_short_16: JMGQMJHAPZUUHSGZ · pith_short_8: JMGQMJHA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/JMGQMJHAPZUUHSGZ6TABUIEMEM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 4b0d0624e07e6943c8d9f4c01a208c233de060336b24ef20a29846f5673e546d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65ac6340bc0608cadcdaf497ae96be84f619c7e40e05822fe8d6216733e701fc",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-07-04T09:24:45Z",
    "title_canon_sha256": "2ade15993c170958deb4412bd13eb31d1c278f5717414f6027f6d8074c710909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01494",
    "kind": "arxiv",
    "version": 2
  }
}