Pith Number

pith:NYSQNPSL

pith:2016:NYSQNPSLZNAO3JWT7MLCHJUSBE

not attested not anchored not stored refs pending

Colorability Saturation Games

Ralph Keusch

arxiv:1606.09099 v6 · 2016-06-29 · math.CO · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NYSQNPSLZNAO3JWT7MLCHJUSBE}

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	2026-05-18T00:23:14.565980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e2506be4bcb40eda6d3fb1623a692092584625c7fe2363a62be9d6accecc214

Aliases

arxiv: 1606.09099 · arxiv_version: 1606.09099v6 · doi: 10.48550/arxiv.1606.09099 · pith_short_12: NYSQNPSLZNAO · pith_short_16: NYSQNPSLZNAO3JWT · pith_short_8: NYSQNPSL

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/NYSQNPSLZNAO3JWT7MLCHJUSBE \
  | 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: 6e2506be4bcb40eda6d3fb1623a692092584625c7fe2363a62be9d6accecc214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ea4e427984f44b474e3723c21b0d954f84c1d01833a28fdaf7b38e8a851d6f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-06-29T13:50:54Z",
    "title_canon_sha256": "bf2ed8e02d267bb3b65150fc3fd7a7d353d54675e6c3b105fef7608e75b1161f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.09099",
    "kind": "arxiv",
    "version": 6
  }
}