Pith Number

pith:7W7SLHUK

pith:2011:7W7SLHUKS7ONHQ3P3USDPKDE56

not attested not anchored not stored refs pending

Note on two results on the rainbow connection number of graphs

Wei Li, Xueliang Li

arxiv:1110.5017 v1 · 2011-10-23 · 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{7W7SLHUKS7ONHQ3P3USDPKDE56}

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	2026-05-18T04:10:24.900557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdbf259e8a97dcd3c36fdd2437a864ef89b3f39974b30abd91c2de780fd84fe2

Aliases

arxiv: 1110.5017 · arxiv_version: 1110.5017v1 · doi: 10.48550/arxiv.1110.5017 · pith_short_12: 7W7SLHUKS7ON · pith_short_16: 7W7SLHUKS7ONHQ3P · pith_short_8: 7W7SLHUK

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/7W7SLHUKS7ONHQ3P3USDPKDE56 \
  | 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: fdbf259e8a97dcd3c36fdd2437a864ef89b3f39974b30abd91c2de780fd84fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "715dab49409b7cf0667e01429f80ef238d9aabe026470ace40e5385d84433a46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-10-23T04:45:50Z",
    "title_canon_sha256": "ce756c004bdcb314811a38a45b7d28c4bed43b17d02b9d7c508f50a3117372bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5017",
    "kind": "arxiv",
    "version": 1
  }
}