Pith Number

pith:KR5TAHDO

pith:2017:KR5TAHDO3S2CFXWPGR26JAPI6N

not attested not anchored not stored refs pending

On the maximum number of integer colourings with forbidden monochromatic sums

Hong Liu, Katherine Staden, Maryam Sharifzadeh

arxiv:1709.09589 v2 · 2017-09-27 · 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{KR5TAHDO3S2CFXWPGR26JAPI6N}

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	2026-05-18T00:32:50.085081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

547b301c6edcb422decf3475e481e8f3713d41e3345e292bb9e69a779d874a8d

Aliases

arxiv: 1709.09589 · arxiv_version: 1709.09589v2 · doi: 10.48550/arxiv.1709.09589 · pith_short_12: KR5TAHDO3S2C · pith_short_16: KR5TAHDO3S2CFXWP · pith_short_8: KR5TAHDO

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/KR5TAHDO3S2CFXWPGR26JAPI6N \
  | 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: 547b301c6edcb422decf3475e481e8f3713d41e3345e292bb9e69a779d874a8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35ee596a69677878dd72ba4ca4fe3b7a4197b5491fa644b17d453257a3bd402c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-27T15:50:28Z",
    "title_canon_sha256": "b7de7997b4b9251756d5694633110ee1cd8fde8aee4c3fcfb07d0618550291cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09589",
    "kind": "arxiv",
    "version": 2
  }
}