Pith Number

pith:P6KTPY4I

pith:2015:P6KTPY4I6LWSKUITLHPRO6QDRH

not attested not anchored not stored refs pending

Coloring tournaments with forbidden substructures

Krzysztof Choromanski, Tony Jebara

arxiv:1504.01119 v1 · 2015-04-05 · cs.DM · 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{P6KTPY4I6LWSKUITLHPRO6QDRH}

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	2026-05-18T02:19:35.107042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f9537e388f2ed25511359df177a0389d86cc3338fbc63614ab4be6d34b93f02

Aliases

arxiv: 1504.01119 · arxiv_version: 1504.01119v1 · doi: 10.48550/arxiv.1504.01119 · pith_short_12: P6KTPY4I6LWS · pith_short_16: P6KTPY4I6LWSKUIT · pith_short_8: P6KTPY4I

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/P6KTPY4I6LWSKUITLHPRO6QDRH \
  | 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: 7f9537e388f2ed25511359df177a0389d86cc3338fbc63614ab4be6d34b93f02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe5783342f0e7ef4f7e5939e923a24f6be8518f41c5adfae2c441e9666a73c96",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-04-05T13:17:17Z",
    "title_canon_sha256": "aebee45650bc775908b6f7b8720e6efb39c60779b211ed7dbb8a13d078014e83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01119",
    "kind": "arxiv",
    "version": 1
  }
}