Pith Number

pith:X7B7WDXB

pith:2015:X7B7WDXB7ST3RB4V5NH22QFBXA

not attested not anchored not stored refs pending

The Unimodular Intersection Problem

Pauline Sarrabezolles, Shmuel Onn, Volker Kaibel

arxiv:1502.04301 v3 · 2015-02-15 · math.OC · cs.DM · cs.DS · 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{X7B7WDXB7ST3RB4V5NH22QFBXA}

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	2026-05-18T01:31:18.877571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfc3fb0ee1fca7b88795eb4fad40a1b818672eb8f0fa0df10297b4cd80bd214a

Aliases

arxiv: 1502.04301 · arxiv_version: 1502.04301v3 · doi: 10.48550/arxiv.1502.04301 · pith_short_12: X7B7WDXB7ST3 · pith_short_16: X7B7WDXB7ST3RB4V · pith_short_8: X7B7WDXB

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/X7B7WDXB7ST3RB4V5NH22QFBXA \
  | 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: bfc3fb0ee1fca7b88795eb4fad40a1b818672eb8f0fa0df10297b4cd80bd214a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45a246eb5ca20bd35bb314bd470bef7ace22930cb56b43ed5eee93173d2cd581",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-02-15T11:30:02Z",
    "title_canon_sha256": "7655fd577f34cad08623679beb0f4cb81292a7b1d830ad762a6e1826fb79329d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04301",
    "kind": "arxiv",
    "version": 3
  }
}