Pith Number

pith:QEMIWW3F

pith:2020:QEMIWW3F5XK6FIGRCFS2LPQ3ZE

not attested not anchored not stored refs pending

Incremental Monoidal Grammars

Alexis Toumi, Dan Shiebler, Mehrnoosh Sadrzadeh

arxiv:2001.02296 v2 · 2020-01-02 · cs.FL · cs.AI · 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{QEMIWW3F5XK6FIGRCFS2LPQ3ZE}

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	2026-07-05T00:32:41.103105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81188b5b65edd5e2a0d11165a5be1bc91b84db9e6588e3ff1523b6c8b8052573

Aliases

arxiv: 2001.02296 · arxiv_version: 2001.02296v2 · doi: 10.48550/arxiv.2001.02296 · pith_short_12: QEMIWW3F5XK6 · pith_short_16: QEMIWW3F5XK6FIGR · pith_short_8: QEMIWW3F

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/QEMIWW3F5XK6FIGRCFS2LPQ3ZE \
  | 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: 81188b5b65edd5e2a0d11165a5be1bc91b84db9e6588e3ff1523b6c8b8052573

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a63c3235d97f507da2a91754a2597b3d1948a28f01b98071cacc57a1c76af842",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2020-01-02T22:37:12Z",
    "title_canon_sha256": "1ee7304aa3e92e71ab6841e8b15faa21e4619cf0e577a50389e104ea1f24f34d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02296",
    "kind": "arxiv",
    "version": 2
  }
}