Pith Number

pith:4QP6SS6Q

pith:2017:4QP6SS6QU5SE6MKULHFTGAPRPJ

not attested not anchored not stored refs pending

Piercing axis-parallel boxes

Maria Chudnovsky, Shira Zerbib, Sophie Spirkl

arxiv:1705.00089 v2 · 2017-04-28 · 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{4QP6SS6QU5SE6MKULHFTGAPRPJ}

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	2026-05-18T00:39:12.282751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e41fe94bd0a7644f315459cb3301f17a5065e65994058c4c154d1315fd830207

Aliases

arxiv: 1705.00089 · arxiv_version: 1705.00089v2 · doi: 10.48550/arxiv.1705.00089 · pith_short_12: 4QP6SS6QU5SE · pith_short_16: 4QP6SS6QU5SE6MKU · pith_short_8: 4QP6SS6Q

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/4QP6SS6QU5SE6MKULHFTGAPRPJ \
  | 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: e41fe94bd0a7644f315459cb3301f17a5065e65994058c4c154d1315fd830207

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6ad83ac0146dc5d07d8d3d67a9e9c9da848069d5d6ee2c8ea0f2fad8f3f0947",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-04-28T22:34:04Z",
    "title_canon_sha256": "e11f86085ab7567eb48de1aa6c7ec65b6cf294cfac7199c52e8caed3c97636c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00089",
    "kind": "arxiv",
    "version": 2
  }
}