Pith Number

pith:ELBUUHAD

pith:2015:ELBUUHADCHKK7WH7ZPV6LEJIUM

not attested not anchored not stored refs pending

How to solve the cake-cutting problem in sublinear time

CREST, Hiro Ito (UEC, Japan, Japan), JST, Takahiro Ueda (Komatsu Ltd.

arxiv:1504.00774 v2 · 2015-04-03 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ELBUUHADCHKK7WH7ZPV6LEJIUM}

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	2026-05-18T01:36:25.600674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22c34a1c0311d4afd8ffcbebe59128a31d2e5abae0ad326621cdccaecb97fa04

Aliases

arxiv: 1504.00774 · arxiv_version: 1504.00774v2 · doi: 10.48550/arxiv.1504.00774 · pith_short_12: ELBUUHADCHKK · pith_short_16: ELBUUHADCHKK7WH7 · pith_short_8: ELBUUHAD

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/ELBUUHADCHKK7WH7ZPV6LEJIUM \
  | 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: 22c34a1c0311d4afd8ffcbebe59128a31d2e5abae0ad326621cdccaecb97fa04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703312bed5056137ff473d6e58323ad42508ace823258b88ed7426bd04a932d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-03T08:24:31Z",
    "title_canon_sha256": "8c8354c1151c7218ad0ab3efe86bac9e150f7683d19460ab4085616d78c956d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00774",
    "kind": "arxiv",
    "version": 2
  }
}