Pith Number

pith:CTDCNP5S

pith:2017:CTDCNP5SVGLKUASU3FAJ4YLUTQ

not attested not anchored not stored refs pending

Leaf realization problem, caterpillar graphs and prefix normal words

Alain Goupil, Alexandre Blondin Mass\'e, \'Elise Vandomme, \'Emile Nadeau, Julien de Carufel, M\'elodie Lapointe

arxiv:1712.01942 v1 · 2017-12-05 · 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{CTDCNP5SVGLKUASU3FAJ4YLUTQ}

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	2026-05-18T00:14:34.282517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14c626bfb2a996aa0254d9409e61749c2016e75496e76f461fef40f9c785ddc7

Aliases

arxiv: 1712.01942 · arxiv_version: 1712.01942v1 · doi: 10.48550/arxiv.1712.01942 · pith_short_12: CTDCNP5SVGLK · pith_short_16: CTDCNP5SVGLKUASU · pith_short_8: CTDCNP5S

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/CTDCNP5SVGLKUASU3FAJ4YLUTQ \
  | 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: 14c626bfb2a996aa0254d9409e61749c2016e75496e76f461fef40f9c785ddc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f48e92ca18bc1aff8cf81ba33b97b802ceb06149bd6dada2bec9cb20b42fefd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-12-05T21:53:30Z",
    "title_canon_sha256": "80aa5cb28ce6f0999d8105fb373c6b86ec74632e66df469f14141faa8492280d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01942",
    "kind": "arxiv",
    "version": 1
  }
}