Pith Number

pith:4NPNFBRT

pith:2016:4NPNFBRTPF7UGA2RNEGK4BLGCZ

not attested not anchored not stored refs pending

Coming to Terms with Quantified Reasoning

Andrei Voronkov, Laura Kovacs, Simon Robillard

arxiv:1611.02908 v1 · 2016-11-09 · 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{4NPNFBRTPF7UGA2RNEGK4BLGCZ}

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	2026-05-18T00:59:43.209283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e35ed28633797f430351690cae0566167a98b6610ef34a112f1c0776901b7dd5

Aliases

arxiv: 1611.02908 · arxiv_version: 1611.02908v1 · doi: 10.48550/arxiv.1611.02908 · pith_short_12: 4NPNFBRTPF7U · pith_short_16: 4NPNFBRTPF7UGA2R · pith_short_8: 4NPNFBRT

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/4NPNFBRTPF7UGA2RNEGK4BLGCZ \
  | 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: e35ed28633797f430351690cae0566167a98b6610ef34a112f1c0776901b7dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eede07c2dec249f4472d70f74adf032e67e6818e6444be01d519db2b640a7845",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-11-09T12:55:38Z",
    "title_canon_sha256": "5046287a6ac904b08982a9827d6c679f926d480be605dfe8eba810678ea0f2a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.02908",
    "kind": "arxiv",
    "version": 1
  }
}