Pith Number

pith:MCOTD5OG

pith:2014:MCOTD5OGGL5RFZWSTOWQDL66PI

not attested not anchored not stored refs pending

Composing short 3-compressing words on a 2 letter alphabet

Achille Frigeri, Alessandra Cherubini, Zuhua Liu

arxiv:1406.1413 v3 · 2014-06-05 · math.CO · cs.FL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MCOTD5OGGL5RFZWSTOWQDL66PI}

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	2026-05-18T01:35:20.717334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

609d31f5c632fb12e6d29bad01afde7a3786eb0bfde3379e6a396ff0db31f48b

Aliases

arxiv: 1406.1413 · arxiv_version: 1406.1413v3 · doi: 10.48550/arxiv.1406.1413 · pith_short_12: MCOTD5OGGL5R · pith_short_16: MCOTD5OGGL5RFZWS · pith_short_8: MCOTD5OG

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/MCOTD5OGGL5RFZWSTOWQDL66PI \
  | 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: 609d31f5c632fb12e6d29bad01afde7a3786eb0bfde3379e6a396ff0db31f48b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd7e5927104e9658d1ea8114bf40f0b2ac930f09527fc4cefce3cb6b52dbe0ab",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-06-05T15:26:56Z",
    "title_canon_sha256": "51cee9ad7ded26423ac0a40efe632615bf5884660a7f2636e79a17f3890dbcdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1413",
    "kind": "arxiv",
    "version": 3
  }
}