Pith Number

pith:7AYV4SDM

pith:2016:7AYV4SDM2QX4QQGJUADKMFLILU

not attested not anchored not stored refs pending

A Simple Condition for the Existence of Transversals

Arindam Biswas

arxiv:1602.05181 v1 · 2016-02-16 · 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{7AYV4SDM2QX4QQGJUADKMFLILU}

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	2026-05-18T01:20:37.356638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8315e486cd42fc840c9a006a615685d29085ae3a4f1753123873f96603017c0

Aliases

arxiv: 1602.05181 · arxiv_version: 1602.05181v1 · doi: 10.48550/arxiv.1602.05181 · pith_short_12: 7AYV4SDM2QX4 · pith_short_16: 7AYV4SDM2QX4QQGJ · pith_short_8: 7AYV4SDM

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/7AYV4SDM2QX4QQGJUADKMFLILU \
  | 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: f8315e486cd42fc840c9a006a615685d29085ae3a4f1753123873f96603017c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7002eab61e41068317fe6c723f7c11391c696f3bd554eaae16038e073445454b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-02-16T20:54:24Z",
    "title_canon_sha256": "9c4371eb2b09449108038e289b58426adbf38d5a300027eae354917a6cb9918b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05181",
    "kind": "arxiv",
    "version": 1
  }
}