Pith Number

pith:PK4W3G3D

pith:2015:PK4W3G3DLFELSIFNJW7HYX7IQN

not attested not anchored not stored refs pending

Maximum Matching in General Graphs Without Explicit Consideration of Blossoms Revisited

Norbert Blum

arxiv:1509.04927 v1 · 2015-09-16 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK4W3G3DLFELSIFNJW7HYX7IQN}

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.

Cited by

1 paper in Pith

Blossom VI: A Practical Minimum Weight Perfect Matching Algorithm

Receipt and verification

First computed	2026-05-18T01:32:51.323700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab96d9b635948b920ad4dbe7c5fe8834a8d14ebd35229bcf73c99513ff65deb

Aliases

arxiv: 1509.04927 · arxiv_version: 1509.04927v1 · doi: 10.48550/arxiv.1509.04927 · pith_short_12: PK4W3G3DLFEL · pith_short_16: PK4W3G3DLFELSIFN · pith_short_8: PK4W3G3D

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/PK4W3G3DLFELSIFNJW7HYX7IQN \
  | 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: 7ab96d9b635948b920ad4dbe7c5fe8834a8d14ebd35229bcf73c99513ff65deb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5cf241398655eae1080b1c42d5c925ae5ed8a4e3d908b1c96e1a1c7ef485fa5",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-09-16T14:11:38Z",
    "title_canon_sha256": "0ff6171cf027810c4a00d671beac045eebf154117014b88228901e9546db0604"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04927",
    "kind": "arxiv",
    "version": 1
  }
}