Pith Number

pith:JXD2BIOR

pith:2008:JXD2BIOR726S6XS3CCDUYTXLQK

not attested not anchored not stored refs pending

On upper bounds for parameters related to construction of special maximum matchings

Artur Khojabaghyan, Vahan V. Mkrtchyan

arxiv:0901.0121 v3 · 2008-12-31 · cs.DM · 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{JXD2BIOR726S6XS3CCDUYTXLQK}

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	2026-05-18T04:08:13.677828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dc7a0a1d1febd2f5e5b10874c4eeb82b782eec5af28e0ae2e96db35d9dd2a7b

Aliases

arxiv: 0901.0121 · arxiv_version: 0901.0121v3 · doi: 10.48550/arxiv.0901.0121 · pith_short_12: JXD2BIOR726S · pith_short_16: JXD2BIOR726S6XS3 · pith_short_8: JXD2BIOR

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/JXD2BIOR726S6XS3CCDUYTXLQK \
  | 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: 4dc7a0a1d1febd2f5e5b10874c4eeb82b782eec5af28e0ae2e96db35d9dd2a7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb06ccacd2dabc24c74aa6f6f74625eda6fefeea79ded608d7fc0fd4459f70e3",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2008-12-31T17:23:00Z",
    "title_canon_sha256": "e6bc43fb55802ab0b89d331399015346d2c96e132ce778478cc91227d1de80dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0121",
    "kind": "arxiv",
    "version": 3
  }
}