Pith Number

pith:UAIUMNJ6

pith:2012:UAIUMNJ6VXHN7NEX37VC6UIRQZ

not attested not anchored not stored refs pending

A restriction of Euclid

Grant Cairns, Nhan Bao Ho

arxiv:1202.4597 v1 · 2012-02-21 · 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{UAIUMNJ6VXHN7NEX37VC6UIRQZ}

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	2026-05-18T04:01:50.308288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a01146353eadcedfb497dfea2f51118657501b277503a41fdc77564f829bbb61

Aliases

arxiv: 1202.4597 · arxiv_version: 1202.4597v1 · doi: 10.48550/arxiv.1202.4597 · pith_short_12: UAIUMNJ6VXHN · pith_short_16: UAIUMNJ6VXHN7NEX · pith_short_8: UAIUMNJ6

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/UAIUMNJ6VXHN7NEX37VC6UIRQZ \
  | 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: a01146353eadcedfb497dfea2f51118657501b277503a41fdc77564f829bbb61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d735c2145c4a199e3723388d9ba87a8e764c244dedcee49f9c24faa3fba67c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-02-21T11:17:29Z",
    "title_canon_sha256": "462371e22c08ca24ad3f5565a779e6f5da0835d53b638481678e7685055648bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4597",
    "kind": "arxiv",
    "version": 1
  }
}