Pith Number

pith:KBUY27YV

pith:2019:KBUY27YV43HQLKF6KF4ARBYNVO

not attested not anchored not stored refs pending

Directed Intersection Representations and the Information Content of Digraphs

Olgica Milenkovic, Roberto Machado, Xujun Liu

arxiv:1901.06534 v2 · 2019-01-19 · 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{KBUY27YV43HQLKF6KF4ARBYNVO}

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	2026-05-17T23:40:33.617713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50698d7f15e6cf05a8be517808870daba1d8ffef1b603341a302cbf3115e2c30

Aliases

arxiv: 1901.06534 · arxiv_version: 1901.06534v2 · doi: 10.48550/arxiv.1901.06534 · pith_short_12: KBUY27YV43HQ · pith_short_16: KBUY27YV43HQLKF6 · pith_short_8: KBUY27YV

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/KBUY27YV43HQLKF6KF4ARBYNVO \
  | 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: 50698d7f15e6cf05a8be517808870daba1d8ffef1b603341a302cbf3115e2c30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4a17087550181346fce79dba6f7b2a48b797e550aa1387858a28208ae191e5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-19T14:35:47Z",
    "title_canon_sha256": "1eb4a490ef7d9fb1364ecf9cde1250e5e33930a7acf74ae262406dd190ef0202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06534",
    "kind": "arxiv",
    "version": 2
  }
}