Pith Number

pith:E5SA6B4O

pith:2017:E5SA6B4O5E4VO7DHD3WR3AEKND

not attested not anchored not stored refs pending

A $(5,5)$-coloring of $K_n$ with few colors

Alex Cameron, Emily Heath

arxiv:1702.06227 v1 · 2017-02-21 · 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{E5SA6B4O5E4VO7DHD3WR3AEKND}

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	2026-05-18T00:50:14.678937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27640f078ee939577c671eed1d808a68cbd78ba53d4209e1a6df0754bcc62245

Aliases

arxiv: 1702.06227 · arxiv_version: 1702.06227v1 · doi: 10.48550/arxiv.1702.06227 · pith_short_12: E5SA6B4O5E4V · pith_short_16: E5SA6B4O5E4VO7DH · pith_short_8: E5SA6B4O

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/E5SA6B4O5E4VO7DHD3WR3AEKND \
  | 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: 27640f078ee939577c671eed1d808a68cbd78ba53d4209e1a6df0754bcc62245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da72dc566490f894d436736b3518dfeec33e1be4b7b683c05c07e9d1840a46fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-21T01:02:32Z",
    "title_canon_sha256": "3846a4e5e68a70888482aefa3fda2ec754deb5ee2aca86ad6e6d742567508936"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06227",
    "kind": "arxiv",
    "version": 1
  }
}