Pith Number

pith:B3LF73LH

pith:2018:B3LF73LHBAA7H3KSJ2XCO42M6R

not attested not anchored not stored refs pending

Colorings v.s. list colorings of uniform hypergraphs

Jianguo Qian, Wei Wang, Zhidan Yan

arxiv:1804.02852 v1 · 2018-04-09 · 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{B3LF73LHBAA7H3KSJ2XCO42M6R}

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	2026-05-18T00:18:58.173011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed65fed670801f3ed524eae27734cf45bcaf19714b3d7f62e4d74a688b40589

Aliases

arxiv: 1804.02852 · arxiv_version: 1804.02852v1 · doi: 10.48550/arxiv.1804.02852 · pith_short_12: B3LF73LHBAA7 · pith_short_16: B3LF73LHBAA7H3KS · pith_short_8: B3LF73LH

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/B3LF73LHBAA7H3KSJ2XCO42M6R \
  | 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: 0ed65fed670801f3ed524eae27734cf45bcaf19714b3d7f62e4d74a688b40589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94f8951cbd9c49f40cf9b1ea433a40c331be7fa97d71ccb640fcdf596b8faf3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-04-09T07:35:59Z",
    "title_canon_sha256": "c4c05ab334b92ddb9befeb78466ab2f9fab5da9e4c9f8808085d8b8c150f04cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02852",
    "kind": "arxiv",
    "version": 1
  }
}