Pith Number

pith:UYRQN3G4

pith:2017:UYRQN3G4UGGQW46IYJHG365OFD

not attested not anchored not stored refs pending

A Short Note on Undirected Fitch Graphs

Manuela Gei{\ss}, Marc Hellmuth, Peter F. Stadler, Yangjing Long

arxiv:1712.01544 v1 · 2017-12-05 · cs.DM · 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{UYRQN3G4UGGQW46IYJHG365OFD}

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	2026-05-18T00:28:50.381231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a62306ecdca18d0b73c8c24e6dfbae28c11473b6a4f6dbeb833d31c27193cd86

Aliases

arxiv: 1712.01544 · arxiv_version: 1712.01544v1 · doi: 10.48550/arxiv.1712.01544 · pith_short_12: UYRQN3G4UGGQ · pith_short_16: UYRQN3G4UGGQW46I · pith_short_8: UYRQN3G4

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/UYRQN3G4UGGQW46IYJHG365OFD \
  | 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: a62306ecdca18d0b73c8c24e6dfbae28c11473b6a4f6dbeb833d31c27193cd86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3d056f77f3db49eaaf982483168f2a28f2ad203afc14c0837ec6132b0f8d7b7",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-12-05T09:48:00Z",
    "title_canon_sha256": "d26c638b83db86a415d92db2356b9e8484ecc9799e52f0eab2487a5dc3a83967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01544",
    "kind": "arxiv",
    "version": 1
  }
}