Pith Number

pith:R7SU3NHE

pith:2014:R7SU3NHE6IH47O6HJHW4JKZBU6

not attested not anchored not stored refs pending

Centroidal bases in graphs

Florent Foucaud, Peter J. Slater, Ralf Klasing

arxiv:1406.7490 v1 · 2014-06-29 · 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{R7SU3NHE6IH47O6HJHW4JKZBU6}

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	2026-05-18T02:19:08.422453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fe54db4e4f20fcfbbc749edc4ab21a78c7138c17f85edd865dfacf72f42d810

Aliases

arxiv: 1406.7490 · arxiv_version: 1406.7490v1 · doi: 10.48550/arxiv.1406.7490 · pith_short_12: R7SU3NHE6IH4 · pith_short_16: R7SU3NHE6IH47O6H · pith_short_8: R7SU3NHE

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/R7SU3NHE6IH47O6HJHW4JKZBU6 \
  | 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: 8fe54db4e4f20fcfbbc749edc4ab21a78c7138c17f85edd865dfacf72f42d810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eae7ed1d15efba49d3146b35770d87b80b7125188c8d4d9ed1ad61127ae8404c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-06-29T11:03:40Z",
    "title_canon_sha256": "787f076f6b99dfb20cd519ade5c1aa373a07c6747f5ab4701eafde6906ecddfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7490",
    "kind": "arxiv",
    "version": 1
  }
}