Pith Number

pith:ZSOUYY4S

pith:2017:ZSOUYY4SWNVLJ74TYJS6VMCSZO

not attested not anchored not stored refs pending

Colorful coverings of polytopes and piercing numbers of colorful d-intervals

Florian Frick, Shira Zerbib

arxiv:1710.07722 v2 · 2017-10-20 · 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{ZSOUYY4SWNVLJ74TYJS6VMCSZO}

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	2026-07-05T01:50:14.011606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc9d4c6392b36ab4ff93c265eab052cb8371f34627e82dda321c9b1329122948

Aliases

arxiv: 1710.07722 · arxiv_version: 1710.07722v2 · doi: 10.48550/arxiv.1710.07722 · pith_short_12: ZSOUYY4SWNVL · pith_short_16: ZSOUYY4SWNVLJ74T · pith_short_8: ZSOUYY4S

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/ZSOUYY4SWNVLJ74TYJS6VMCSZO \
  | 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: cc9d4c6392b36ab4ff93c265eab052cb8371f34627e82dda321c9b1329122948

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb142ba6c4538e21db9389d381ce112118226faeb557c86d4f0ad64073240631",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-10-20T22:41:16Z",
    "title_canon_sha256": "ac27af0257dea72654629ed4592823ff3be9f7f03ce189875f6db43eb9f06be8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07722",
    "kind": "arxiv",
    "version": 2
  }
}