Pith Number

pith:PPZTMTY7

pith:2014:PPZTMTY7IYFBVQ4Z26CNKIUOPE

not attested not anchored not stored refs pending

Pairs of orthogonal countable ordinals

Claude Laflamme, Imed Zaguia, Maurice Pouzet, Nobert Sauer

arxiv:1407.0940 v1 · 2014-07-03 · 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{PPZTMTY7IYFBVQ4Z26CNKIUOPE}

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	2026-05-18T02:48:25.111740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bf3364f1f460a1ac399d784d5228e79083100b758f949152c8d96a47faa54d3

Aliases

arxiv: 1407.0940 · arxiv_version: 1407.0940v1 · doi: 10.48550/arxiv.1407.0940 · pith_short_12: PPZTMTY7IYFB · pith_short_16: PPZTMTY7IYFBVQ4Z · pith_short_8: PPZTMTY7

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/PPZTMTY7IYFBVQ4Z26CNKIUOPE \
  | 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: 7bf3364f1f460a1ac399d784d5228e79083100b758f949152c8d96a47faa54d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63bda8843756e5a099d73427c3fd9906add11ffcfe5afd66a8b8606d1939cbe4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-07-03T15:03:06Z",
    "title_canon_sha256": "911c4a2c933b45058aabce1904cdc5213801e2cb3f274d4f25c0ae93a11c1437"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.0940",
    "kind": "arxiv",
    "version": 1
  }
}