Pith Number

pith:L62RU4XA

pith:2024:L62RU4XAPHJVLU2NHMTWZTGO4R

not attested not anchored not stored refs pending

Exact and Heuristic Computation of the Scanwidth of Directed Acyclic Graphs

Leo van Iersel, Mark Jones, Niels Holtgrefe

arxiv:2403.12734 v2 · 2024-03-19 · cs.DS · cs.DM · 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{L62RU4XAPHJVLU2NHMTWZTGO4R}

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	2026-05-21T01:05:02.204391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fb51a72e079d355d34d3b276ccccee4698a0669b9ee5041c5836e4a69ebd49c

Aliases

arxiv: 2403.12734 · arxiv_version: 2403.12734v2 · doi: 10.48550/arxiv.2403.12734 · pith_short_12: L62RU4XAPHJV · pith_short_16: L62RU4XAPHJVLU2N · pith_short_8: L62RU4XA

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/L62RU4XAPHJVLU2NHMTWZTGO4R \
  | 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: 5fb51a72e079d355d34d3b276ccccee4698a0669b9ee5041c5836e4a69ebd49c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1e60b7acb90b78db3eef567dcde051c5536ee9c58ac392c673aa2b20b1e384f",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2024-03-19T13:49:31Z",
    "title_canon_sha256": "ac3aaf68cc99950f1f321fd34d0802776f9a33f964bfa163ea068dc9df82e318"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.12734",
    "kind": "arxiv",
    "version": 2
  }
}