Pith Number

pith:G4WQZSHA

pith:2019:G4WQZSHA4KOCUQUCLERFZJJAFW

not attested not anchored not stored refs pending

The birth of the contradictory component in random 2-SAT

Sergey Dovgal

arxiv:1904.10266 v1 · 2019-04-23 · math.CO · cs.DM · 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{G4WQZSHA4KOCUQUCLERFZJJAFW}

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	2026-05-17T23:47:54.636475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

372d0cc8e0e29c2a428259225ca5202d880d944380d107f493f09ebc4746eda1

Aliases

arxiv: 1904.10266 · arxiv_version: 1904.10266v1 · doi: 10.48550/arxiv.1904.10266 · pith_short_12: G4WQZSHA4KOC · pith_short_16: G4WQZSHA4KOCUQUC · pith_short_8: G4WQZSHA

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/G4WQZSHA4KOCUQUCLERFZJJAFW \
  | 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: 372d0cc8e0e29c2a428259225ca5202d880d944380d107f493f09ebc4746eda1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16b7c1a2d39af7910e15e4b20f546d8f424a4bf4193ac71aa01d6b483756f64a",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-23T12:07:53Z",
    "title_canon_sha256": "6f5c5573dda4fbaf212c23692c6c77f8bc4c6804aee5b6ebca38e85473687c90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10266",
    "kind": "arxiv",
    "version": 1
  }
}