Pith Number

pith:ILGRXUYB

pith:2019:ILGRXUYB2R2SN7Q232HFDH2Z7C

not attested not anchored not stored refs pending

Firefighting on Trees

Bertrand Jouve, David Ellison, Marc Demange, Pierre Coupechoux

arxiv:1902.02159 v1 · 2019-02-06 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ILGRXUYB2R2SN7Q232HFDH2Z7C}

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	2026-05-17T23:54:37.789441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42cd1bd301d47526fe1ade8e519f59f8b44b64ef26a9250a1ea814221c87ced3

Aliases

arxiv: 1902.02159 · arxiv_version: 1902.02159v1 · doi: 10.48550/arxiv.1902.02159 · pith_short_12: ILGRXUYB2R2S · pith_short_16: ILGRXUYB2R2SN7Q2 · pith_short_8: ILGRXUYB

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/ILGRXUYB2R2SN7Q232HFDH2Z7C \
  | 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: 42cd1bd301d47526fe1ade8e519f59f8b44b64ef26a9250a1ea814221c87ced3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10709e5a275712d33d69737ac6ae9f005d1e0c7f76f472d4a22eca5acc27b1f4",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-02-06T13:24:06Z",
    "title_canon_sha256": "8946242077801c07029a07452118a7a9afcb531c3244ab3ce022ab14f9258b2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02159",
    "kind": "arxiv",
    "version": 1
  }
}