Pith Number

pith:LEDJXUDK

pith:2019:LEDJXUDKZE7H2ZEM7WGN4J3Z6Q

not attested not anchored not stored refs pending

Symbolic method and directed graph enumeration

\'Elie de Panafieu, Sergey Dovgal

arxiv:1903.09454 v2 · 2019-03-22 · 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{LEDJXUDKZE7H2ZEM7WGN4J3Z6Q}

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	2026-05-17T23:43:32.741242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59069bd06ac93e7d648cfd8cde2779f40422c897b3a2e9007997cc1510d1e55d

Aliases

arxiv: 1903.09454 · arxiv_version: 1903.09454v2 · doi: 10.48550/arxiv.1903.09454 · pith_short_12: LEDJXUDKZE7H · pith_short_16: LEDJXUDKZE7H2ZEM · pith_short_8: LEDJXUDK

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/LEDJXUDKZE7H2ZEM7WGN4J3Z6Q \
  | 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: 59069bd06ac93e7d648cfd8cde2779f40422c897b3a2e9007997cc1510d1e55d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd516bf5a2b9b3dce79e2aa6b53e0cd9d7a30554dcebb010f73b247a57cbdd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-22T11:34:13Z",
    "title_canon_sha256": "3486f922b7d151998ebf8069c7c280302dc948747e09b719701face7c17c97fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09454",
    "kind": "arxiv",
    "version": 2
  }
}