Pith Number

pith:UOKBWHXH

pith:2018:UOKBWHXHTXUAYIMLJPQ4CCWXSJ

not attested not anchored not stored refs pending

Franck-Condon factors by counting perfect matchings of graphs with loops

Nicol\'as Quesada

arxiv:1811.09597 v2 · 2018-11-23 · quant-ph · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UOKBWHXHTXUAYIMLJPQ4CCWXSJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:45:32.861439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3941b1ee79de80c218b4be1c10ad79273194785000e91f03bdf40933591f123

Aliases

arxiv: 1811.09597 · arxiv_version: 1811.09597v2 · doi: 10.48550/arxiv.1811.09597 · pith_short_12: UOKBWHXHTXUA · pith_short_16: UOKBWHXHTXUAYIML · pith_short_8: UOKBWHXH

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/UOKBWHXHTXUAYIMLJPQ4CCWXSJ \
  | 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: a3941b1ee79de80c218b4be1c10ad79273194785000e91f03bdf40933591f123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49ce7b5657cb45d38c66ec9ade91f7e5b00733e1c4713444f8abb60074bf6bdd",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-11-23T18:49:57Z",
    "title_canon_sha256": "cd3c0fb878488054a2198ef24e5e22e7908d9cb103f39bc3c4a967c0b4fbaf1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09597",
    "kind": "arxiv",
    "version": 2
  }
}