Pith Number

pith:MMGWWUXN

pith:2012:MMGWWUXNOMSIE7IRW65SL63MAJ

not attested not anchored not stored refs pending

Bichromatic compatible matchings

Diane L. Souvaine, Greg Aloupis, Luis Barba, Stefan Langerman

arxiv:1207.2375 v3 · 2012-07-10 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MMGWWUXNOMSIE7IRW65SL63MAJ}

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	2026-05-18T03:06:13.752238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

630d6b52ed7324827d11b7bb25fb6c025adc60423117ca6d6b4b4a8f1f76a59c

Aliases

arxiv: 1207.2375 · arxiv_version: 1207.2375v3 · doi: 10.48550/arxiv.1207.2375 · pith_short_12: MMGWWUXNOMSI · pith_short_16: MMGWWUXNOMSIE7IR · pith_short_8: MMGWWUXN

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/MMGWWUXNOMSIE7IRW65SL63MAJ \
  | 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: 630d6b52ed7324827d11b7bb25fb6c025adc60423117ca6d6b4b4a8f1f76a59c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a245ad639d7b29f17a653106a0625f1dcf34cda794bafabc22dd7a728ef4e8f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-07-10T14:39:41Z",
    "title_canon_sha256": "b0f569f6a5713c51914031f1dd6df4b4480306bbfd32c14bd3405bedb5f4d384"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2375",
    "kind": "arxiv",
    "version": 3
  }
}