Pith Number

pith:EY2OWGHH

pith:2015:EY2OWGHH63K4Z5QKBEPRVQ6VL5

not attested not anchored not stored refs pending

Asymmetric coloring games on incomparability graphs

Bartosz Walczak, Tomasz Krawczyk

arxiv:1503.04748 v1 · 2015-03-16 · 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{EY2OWGHH63K4Z5QKBEPRVQ6VL5}

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	2026-05-18T02:23:24.133943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2634eb18e7f6d5ccf60a091f1ac3d55f64475a0211edd6c1eb30b40fefea69a4

Aliases

arxiv: 1503.04748 · arxiv_version: 1503.04748v1 · doi: 10.48550/arxiv.1503.04748 · pith_short_12: EY2OWGHH63K4 · pith_short_16: EY2OWGHH63K4Z5QK · pith_short_8: EY2OWGHH

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/EY2OWGHH63K4Z5QKBEPRVQ6VL5 \
  | 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: 2634eb18e7f6d5ccf60a091f1ac3d55f64475a0211edd6c1eb30b40fefea69a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08997e450e41b8cc1305c231e9d2056387ea588d303953365a80beb424276aeb",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-03-16T17:52:18Z",
    "title_canon_sha256": "bed469cda65f4b4d943b3ebaa290bbb0dce7b17a6575f483d3e61b01cd7618c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04748",
    "kind": "arxiv",
    "version": 1
  }
}