Pith Number

pith:2YGHHJJL

pith:2017:2YGHHJJLJKAIEDADTS3PXSUOWA

not attested not anchored not stored refs pending

Reconstructing binary matrices under window constraints from their row and column sums

Andreas Alpers, Peter Gritzmann

arxiv:1702.06121 v1 · 2017-02-20 · 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{2YGHHJJLJKAIEDADTS3PXSUOWA}

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	2026-05-18T00:50:14.900730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d60c73a52b4a80820c039cb6fbca8eb00b65eb99238cee62e408483e049354fd

Aliases

arxiv: 1702.06121 · arxiv_version: 1702.06121v1 · doi: 10.48550/arxiv.1702.06121 · pith_short_12: 2YGHHJJLJKAI · pith_short_16: 2YGHHJJLJKAIEDAD · pith_short_8: 2YGHHJJL

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/2YGHHJJLJKAIEDADTS3PXSUOWA \
  | 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: d60c73a52b4a80820c039cb6fbca8eb00b65eb99238cee62e408483e049354fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d4496ba4bd2df97cb729692acaf1387b37b5fb43722e5e5e1a0e218a0984937",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-02-20T14:51:14Z",
    "title_canon_sha256": "aa1306ed0c34e50f17a84ddb2bb84b0be708c76cad57de9718bf2c601d1cc093"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06121",
    "kind": "arxiv",
    "version": 1
  }
}