Pith Number

pith:BGRKDND3

pith:2024:BGRKDND3PKL3RIA2ED6NNMF4OX

not attested not anchored not stored refs pending

Generalizing Roberts' characterization of unit interval graphs

Abdallah Saffidine, Florian Sikora, Romeo Rizzi, St\'ephane Vialette, Virginia Ard\'evol Mart\'inez

arxiv:2404.17872 v1 · 2024-04-27 · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGRKDND3PKL3RIA2ED6NNMF4OX}

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	2026-07-05T08:12:55.318899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09a2a1b47b7a97b8a01a20fcd6b0bc75c8f64cfa48c226f12a3d37e6dd695233

Aliases

arxiv: 2404.17872 · arxiv_version: 2404.17872v1 · doi: 10.48550/arxiv.2404.17872 · pith_short_12: BGRKDND3PKL3 · pith_short_16: BGRKDND3PKL3RIA2 · pith_short_8: BGRKDND3

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/BGRKDND3PKL3RIA2ED6NNMF4OX \
  | 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: 09a2a1b47b7a97b8a01a20fcd6b0bc75c8f64cfa48c226f12a3d37e6dd695233

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "298f4e2c1906d56cabe7035987d00c13583de06f7d35d26b6548043787ca2140",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2024-04-27T11:49:04Z",
    "title_canon_sha256": "cd77360e0beb7e7b360c1a2d7ca3b534cffd054cc5b72f83d9074ce7d41dbe2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.17872",
    "kind": "arxiv",
    "version": 1
  }
}