Pith Number

pith:5U4HYNKY

pith:2025:5U4HYNKYHF32SB4U7RQ2LBXEIX

not attested not anchored not stored refs pending

Tutte's theorem as an educational formalization project

Pim Otte

arxiv:2504.18146 v1 · 2025-04-25 · cs.LO · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5U4HYNKYHF32SB4U7RQ2LBXEIX}

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	2026-07-05T10:54:02.653768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed387c35583977a90794fc61a586e445ee1e59113d1ccd293de466f6aaeb791d

Aliases

arxiv: 2504.18146 · arxiv_version: 2504.18146v1 · doi: 10.48550/arxiv.2504.18146 · pith_short_12: 5U4HYNKYHF32 · pith_short_16: 5U4HYNKYHF32SB4U · pith_short_8: 5U4HYNKY

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/5U4HYNKYHF32SB4U7RQ2LBXEIX \
  | 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: ed387c35583977a90794fc61a586e445ee1e59113d1ccd293de466f6aaeb791d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f2db0bf59ce9128fcd5c0a0de0cbcab08b1efa3ee181596a8f218c0da2094a5",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-04-25T07:55:38Z",
    "title_canon_sha256": "d08d520850e2493c9c37529dbe8bb2fc01764ddc151fe89d51febf1a41767f7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18146",
    "kind": "arxiv",
    "version": 1
  }
}