Pith Number

pith:4FWGM5R2

pith:2013:4FWGM5R2WEI6HVZSNZDIJZWWRN

not attested not anchored not stored refs pending

Making Octants Colorful and Related Covering Decomposition Problems

Jean Cardinal, Kolja Knauer, Piotr Micek, Torsten Ueckerdt

arxiv:1307.2705 v3 · 2013-07-10 · cs.CG · 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{4FWGM5R2WEI6HVZSNZDIJZWWRN}

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	2026-05-18T02:50:51.825274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e16c66763ab111e3d7326e4684e6d68b750d08f79f4b8beb68a45ed14d0003cb

Aliases

arxiv: 1307.2705 · arxiv_version: 1307.2705v3 · doi: 10.48550/arxiv.1307.2705 · pith_short_12: 4FWGM5R2WEI6 · pith_short_16: 4FWGM5R2WEI6HVZS · pith_short_8: 4FWGM5R2

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/4FWGM5R2WEI6HVZSNZDIJZWWRN \
  | 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: e16c66763ab111e3d7326e4684e6d68b750d08f79f4b8beb68a45ed14d0003cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "346bdbab36679d04df07601bee310d814f8b5a17b947310208c1c0f266ae80fe",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-07-10T07:45:16Z",
    "title_canon_sha256": "9a0b239728841025504611ed339ba2a9b9d83d330f95049767a44d82ef391608"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2705",
    "kind": "arxiv",
    "version": 3
  }
}