Pith Number

pith:ICKNKDJT

pith:2014:ICKNKDJTKI2OZ7QOOM3K2JCEXS

not attested not anchored not stored refs pending

Fast regocnition of planar non unit distance graphs

Sascha Kurz

arxiv:1401.4375 v1 · 2014-01-17 · 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{ICKNKDJTKI2OZ7QOOM3K2JCEXS}

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	2026-05-18T03:01:55.197584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4094d50d335234ecfe0e7336ad2444bc91dfd38ddbe6bb94cb9f64b0cf87ac06

Aliases

arxiv: 1401.4375 · arxiv_version: 1401.4375v1 · doi: 10.48550/arxiv.1401.4375 · pith_short_12: ICKNKDJTKI2O · pith_short_16: ICKNKDJTKI2OZ7QO · pith_short_8: ICKNKDJT

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/ICKNKDJTKI2OZ7QOOM3K2JCEXS \
  | 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: 4094d50d335234ecfe0e7336ad2444bc91dfd38ddbe6bb94cb9f64b0cf87ac06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "857c4a0febe0502b48eafb3a162726790bf3c21a5fb00c8234c6d1f8c48a8474",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-01-17T14:57:11Z",
    "title_canon_sha256": "5daa19d8ed9c07ee1f5ef96f53456b2420ad805e13b0a05c4e837c170997bdcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4375",
    "kind": "arxiv",
    "version": 1
  }
}