Pith Number

pith:UFSUOGNX

pith:2017:UFSUOGNXBCQGTN3PM47JU3BK5Q

not attested not anchored not stored refs pending

Fully leafed induced subtrees

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

arxiv:1709.09808 v3 · 2017-09-28 · cs.DS · 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{UFSUOGNXBCQGTN3PM47JU3BK5Q}

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	2026-05-18T00:11:18.600305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1654719b708a069b76f673e9a6c2aec32e9e35c54636144d27cccca7098fc7b

Aliases

arxiv: 1709.09808 · arxiv_version: 1709.09808v3 · doi: 10.48550/arxiv.1709.09808 · pith_short_12: UFSUOGNXBCQG · pith_short_16: UFSUOGNXBCQGTN3P · pith_short_8: UFSUOGNX

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/UFSUOGNXBCQGTN3PM47JU3BK5Q \
  | 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: a1654719b708a069b76f673e9a6c2aec32e9e35c54636144d27cccca7098fc7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e500af11384bf793b8b416e821fbbf48e5c19e16f194f7af87e370c7bfeecbc",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-09-28T05:29:51Z",
    "title_canon_sha256": "ab354da1fc58f0701f0a59b5b92fe7b7c2d55c7688917acffeebcec1e2f73c54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09808",
    "kind": "arxiv",
    "version": 3
  }
}