Pith Number

pith:7OATLHQ2

pith:2017:7OATLHQ2DPJYHUX2FSGQ3WARBV

not attested not anchored not stored refs pending

Fairly Dividing a Cake after Some Parts Were Burnt in the Oven

Erel Segal-Halevi

arxiv:1704.00726 v5 · 2017-04-02 · math.CO · cs.GT · math.AT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7OATLHQ2DPJYHUX2FSGQ3WARBV}

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	2026-05-18T00:15:42.287034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb81359e1a1bd383d2fa2c8d0dd8110d6019e7f35b3fd3c20014eac23a686ad5

Aliases

arxiv: 1704.00726 · arxiv_version: 1704.00726v5 · doi: 10.48550/arxiv.1704.00726 · pith_short_12: 7OATLHQ2DPJY · pith_short_16: 7OATLHQ2DPJYHUX2 · pith_short_8: 7OATLHQ2

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/7OATLHQ2DPJYHUX2FSGQ3WARBV \
  | 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: fb81359e1a1bd383d2fa2c8d0dd8110d6019e7f35b3fd3c20014eac23a686ad5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e208f8749641e9a371f58f93d6e1c5e069d0d39cc575a9299f7275b7870ae985",
    "cross_cats_sorted": [
      "cs.GT",
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-04-02T11:30:45Z",
    "title_canon_sha256": "fdeee56c00347daaea72bdfd2585eafd62dd698fd645bd81573ec706a4811e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00726",
    "kind": "arxiv",
    "version": 5
  }
}