Pith Number

pith:VJWYPJOA

pith:2013:VJWYPJOA7HCJSWT4FZTKMCEFGY

not attested not anchored not stored refs pending

de Bruijn arrays for L-fillings

Lara Pudwell, Rachel Rockey

arxiv:1309.0553 v1 · 2013-09-02 · 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{VJWYPJOA7HCJSWT4FZTKMCEFGY}

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	2026-05-18T03:14:18.709301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa6d87a5c0f9c4995a7c2e66a60885361fab3fa48f4082026ae8555ecbad85fa

Aliases

arxiv: 1309.0553 · arxiv_version: 1309.0553v1 · doi: 10.48550/arxiv.1309.0553 · pith_short_12: VJWYPJOA7HCJ · pith_short_16: VJWYPJOA7HCJSWT4 · pith_short_8: VJWYPJOA

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/VJWYPJOA7HCJSWT4FZTKMCEFGY \
  | 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: aa6d87a5c0f9c4995a7c2e66a60885361fab3fa48f4082026ae8555ecbad85fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c57056d551602e13c1fbb4c15269ab69dba562d453538bebbed2420651a624d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-09-02T22:19:43Z",
    "title_canon_sha256": "a0878ea7be1bcb1f6d5b68cd54f3e71bbbb26b50e136de583ebe910f9cd4a93b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0553",
    "kind": "arxiv",
    "version": 1
  }
}