Pith Number

pith:HZJF2C5D

pith:2013:HZJF2C5DTA75BALF3XV436XZAQ

not attested not anchored not stored refs pending

Snarks from a Kaszonyi perspective: a survey

Richard C. Bradley

arxiv:1302.2655 v2 · 2013-02-11 · 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{HZJF2C5DTA75BALF3XV436XZAQ}

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	2026-05-18T02:56:52.106145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e525d0ba3983fd08165ddebcdfaf90401494e09065d7fc07a883599be6da8b1

Aliases

arxiv: 1302.2655 · arxiv_version: 1302.2655v2 · doi: 10.48550/arxiv.1302.2655 · pith_short_12: HZJF2C5DTA75 · pith_short_16: HZJF2C5DTA75BALF · pith_short_8: HZJF2C5D

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/HZJF2C5DTA75BALF3XV436XZAQ \
  | 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: 3e525d0ba3983fd08165ddebcdfaf90401494e09065d7fc07a883599be6da8b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be236e55fda204f3794ced92a91babad6b0d3dd4769595b1eb883f81f93a37a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-02-11T21:59:17Z",
    "title_canon_sha256": "dcb459d16df886242fc7188497a4bca4c26456a388fd5b72e0f4ec34c3274f8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2655",
    "kind": "arxiv",
    "version": 2
  }
}