Pith Number

pith:IT7HUTVD

pith:2018:IT7HUTVDO74W77BWGXJ3UGW5HC

not attested not anchored not stored refs pending

Acyclic orientations with degree constraints

D\"om\"ot\"or P\'alv\"olgyi, Zolt\'an Kir\'aly

arxiv:1806.03426 v1 · 2018-06-09 · cs.CC · 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{IT7HUTVDO74W77BWGXJ3UGW5HC}

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	2026-05-18T00:13:24.928144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44fe7a4ea377f96ffc3635d3ba1add38a2447be50053e02b3bb83f329fc68c54

Aliases

arxiv: 1806.03426 · arxiv_version: 1806.03426v1 · doi: 10.48550/arxiv.1806.03426 · pith_short_12: IT7HUTVDO74W · pith_short_16: IT7HUTVDO74W77BW · pith_short_8: IT7HUTVD

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/IT7HUTVDO74W77BWGXJ3UGW5HC \
  | 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: 44fe7a4ea377f96ffc3635d3ba1add38a2447be50053e02b3bb83f329fc68c54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf10ab9da926a4821322a00b001b45dc05baf2a5166f95a9260142a2f99caa41",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2018-06-09T07:15:32Z",
    "title_canon_sha256": "a23734b4290d64b63766161c452d4ddff88aebb64205b1bd332261b11955b2fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03426",
    "kind": "arxiv",
    "version": 1
  }
}