Pith Number

pith:JRWGR7MG

pith:2016:JRWGR7MG5VOD2L23CVDBB6SSOW

not attested not anchored not stored refs pending

Large rainbow matchings in general graphs

David Howard, Eli Berger, Maria Chudnovsky, Paul Seymour, Ron Aharoni

arxiv:1611.03648 v5 · 2016-11-11 · 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{JRWGR7MG5VOD2L23CVDBB6SSOW}

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	2026-05-18T00:11:19.184640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c6c68fd86ed5c3d2f5b154610fa5275940ae55af16ebe150add1cfed5ad8a7a

Aliases

arxiv: 1611.03648 · arxiv_version: 1611.03648v5 · doi: 10.48550/arxiv.1611.03648 · pith_short_12: JRWGR7MG5VOD · pith_short_16: JRWGR7MG5VOD2L23 · pith_short_8: JRWGR7MG

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/JRWGR7MG5VOD2L23CVDBB6SSOW \
  | 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: 4c6c68fd86ed5c3d2f5b154610fa5275940ae55af16ebe150add1cfed5ad8a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "123aa6a7e4aee35a2d6c1919d09eccf4df021466f7c223d71dc2b5fab56581ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-11-11T10:25:59Z",
    "title_canon_sha256": "de4c6de4baa9183dcde700dcccd2a4cd6cbbcfe3d99c78c3426363ee93aed7b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.03648",
    "kind": "arxiv",
    "version": 5
  }
}