Pith Number

pith:6N3MXUXS

pith:2012:6N3MXUXSEOM4R6MKCTOLWWZYND

not attested not anchored not stored refs pending

On maximum matchings in almost regular graphs

Petros A. Petrosyan

arxiv:1202.0681 v2 · 2012-02-03 · math.CO · 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{6N3MXUXSEOM4R6MKCTOLWWZYND}

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	2026-05-18T03:49:00.962117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f376cbd2f22399c8f98a14dcbb5b3868cbc6cbb6ca54a0676679a311208f5b9b

Aliases

arxiv: 1202.0681 · arxiv_version: 1202.0681v2 · doi: 10.48550/arxiv.1202.0681 · pith_short_12: 6N3MXUXSEOM4 · pith_short_16: 6N3MXUXSEOM4R6MK · pith_short_8: 6N3MXUXS

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/6N3MXUXSEOM4R6MKCTOLWWZYND \
  | 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: f376cbd2f22399c8f98a14dcbb5b3868cbc6cbb6ca54a0676679a311208f5b9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "410dc20e081a28ebd6df9b2873aa3d3d8e86c051f87b17497544958dcdcaaead",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-02-03T12:39:14Z",
    "title_canon_sha256": "a5e59190325caa132d4aa2e2c11bbca5a1a52665e0b1ec96bb47fdcfec834fd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0681",
    "kind": "arxiv",
    "version": 2
  }
}