Pith Number

pith:DYNTINTJ

pith:2012:DYNTINTJR2UHOKBZP6M2XAOB5I

not attested not anchored not stored refs pending

Improper choosability and Property B

Ross J. Kang

arxiv:1205.4283 v1 · 2012-05-19 · 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{DYNTINTJR2UHOKBZP6M2XAOB5I}

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	2026-05-18T03:14:26.932446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e1b3436698ea87728397f99ab81c1ea3c0d34a3cb846df4f235ff5581397b11

Aliases

arxiv: 1205.4283 · arxiv_version: 1205.4283v1 · doi: 10.48550/arxiv.1205.4283 · pith_short_12: DYNTINTJR2UH · pith_short_16: DYNTINTJR2UHOKBZ · pith_short_8: DYNTINTJ

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/DYNTINTJR2UHOKBZP6M2XAOB5I \
  | 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: 1e1b3436698ea87728397f99ab81c1ea3c0d34a3cb846df4f235ff5581397b11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b5e2af6453d4991808aa1995d5023f74942bb238fbce430d65b194563c5ac95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-05-19T00:16:29Z",
    "title_canon_sha256": "b7073de3e9814ca1446d16868b5ad50e6903e9898714065ac21dba0930271539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4283",
    "kind": "arxiv",
    "version": 1
  }
}