Pith Number

pith:CKLR7SY4

pith:2012:CKLR7SY4SS7PUXZTB6JDVXUTHI

not attested not anchored not stored refs pending

Matchings in Random Biregular Bipartite Graphs

Giorgis Petridis, Guillem Perarnau

arxiv:1205.4130 v2 · 2012-05-18 · 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{CKLR7SY4SS7PUXZTB6JDVXUTHI}

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	2026-05-18T03:13:56.369523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12971fcb1c94befa5f330f923ade933a1ea114f22528a25a97ef794b086a9193

Aliases

arxiv: 1205.4130 · arxiv_version: 1205.4130v2 · doi: 10.48550/arxiv.1205.4130 · pith_short_12: CKLR7SY4SS7P · pith_short_16: CKLR7SY4SS7PUXZT · pith_short_8: CKLR7SY4

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/CKLR7SY4SS7PUXZTB6JDVXUTHI \
  | 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: 12971fcb1c94befa5f330f923ade933a1ea114f22528a25a97ef794b086a9193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96f02111a68d1035c433ac82e34a29195e7437528d7cf1597c7b24a371d3f727",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-05-18T10:42:11Z",
    "title_canon_sha256": "8485618cec7da4d545860301c865dff152a935494d7e4384da43e9502e6a8f06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4130",
    "kind": "arxiv",
    "version": 2
  }
}