Pith Number

pith:A6O27EE6

pith:2014:A6O27EE6WBMNYH47TMJSMODGWR

not attested not anchored not stored refs pending

The edit distance for Reeb graphs of surfaces

Barbara Di Fabio, Claudia Landi

arxiv:1411.1544 v1 · 2014-11-06 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6O27EE6WBMNYH47TMJSMODGWR}

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	2026-05-18T02:38:27.629691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

079daf909eb058dc1f9f9b13263866b445da9b89fd695cb0ba24167b6636c30f

Aliases

arxiv: 1411.1544 · arxiv_version: 1411.1544v1 · doi: 10.48550/arxiv.1411.1544 · pith_short_12: A6O27EE6WBMN · pith_short_16: A6O27EE6WBMNYH47 · pith_short_8: A6O27EE6

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/A6O27EE6WBMNYH47TMJSMODGWR \
  | 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: 079daf909eb058dc1f9f9b13263866b445da9b89fd695cb0ba24167b6636c30f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e597e5450f26f9feba4753930a228380951ba7f3de13fad375d966d56f809b47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-11-06T09:49:07Z",
    "title_canon_sha256": "c704f3a31b1e37fec156c19e156751b1d9c02288da49f036f38e3c3f5849f7c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1544",
    "kind": "arxiv",
    "version": 1
  }
}