Pith Number

pith:BUD6MTGO

pith:2013:BUD6MTGOK5ZTFR5FV5F7ANPUZD

not attested not anchored not stored refs pending

A Graphical Language for Proof Strategies

Aleks Kissinger, Gudmund Grov, Yuhui Lin

arxiv:1302.6890 v2 · 2013-02-27 · 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{BUD6MTGOK5ZTFR5FV5F7ANPUZD}

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	2026-05-18T02:49:54.169835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d07e64cce577332c7a5af4bf035f4c8fd03f7c6f22b124591bbfb7524280be0

Aliases

arxiv: 1302.6890 · arxiv_version: 1302.6890v2 · doi: 10.48550/arxiv.1302.6890 · pith_short_12: BUD6MTGOK5ZT · pith_short_16: BUD6MTGOK5ZTFR5F · pith_short_8: BUD6MTGO

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/BUD6MTGOK5ZTFR5FV5F7ANPUZD \
  | 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: 0d07e64cce577332c7a5af4bf035f4c8fd03f7c6f22b124591bbfb7524280be0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d771bc1f7e5d2ea2467224a578cffd0dd55ccbcd71b512bc9ceaa5d6a305b80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-02-27T15:58:42Z",
    "title_canon_sha256": "35583bd589a8b3a43eece1e4c46a6781c650b50fc5bb9356fc1083a755df0909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6890",
    "kind": "arxiv",
    "version": 2
  }
}