Pith Number

pith:4DHJN2UU

pith:2017:4DHJN2UUIT7GAHOQ6JTJKOIITR

not attested not anchored not stored refs pending

From First-Order Logic to Assertional Logic

Yi Zhou

arxiv:1701.03322 v2 · 2017-01-12 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DHJN2UUIT7GAHOQ6JTJKOIITR}

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	2026-05-18T00:45:25.766133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0ce96ea9444fe601dd0f2669539089c43069a9e890bdded2a7f05b75b0a9f09

Aliases

arxiv: 1701.03322 · arxiv_version: 1701.03322v2 · doi: 10.48550/arxiv.1701.03322 · pith_short_12: 4DHJN2UUIT7G · pith_short_16: 4DHJN2UUIT7GAHOQ · pith_short_8: 4DHJN2UU

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/4DHJN2UUIT7GAHOQ6JTJKOIITR \
  | 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: e0ce96ea9444fe601dd0f2669539089c43069a9e890bdded2a7f05b75b0a9f09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f2a5bc539f57091b32a7553ecdfc16a0e602833e8ff0d8f8eea794a204e47aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2017-01-12T12:25:42Z",
    "title_canon_sha256": "5b67aba29e04c923143544aec7aac8ad55dfc1fcc159825926962063bcf396c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03322",
    "kind": "arxiv",
    "version": 2
  }
}