Pith Number

pith:DL6S6EH2

pith:2011:DL6S6EH2H7PFGRGKL3OIVJ2O5V

not attested not anchored not stored refs pending

Matroidal Degree-Bounded Minimum Spanning Trees

Rico Zenklusen

arxiv:1107.5329 v1 · 2011-07-26 · 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{DL6S6EH2H7PFGRGKL3OIVJ2O5V}

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	2026-05-18T04:16:52.270587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1afd2f10fa3fde5344ca5edc8aa74eed407e1c7a36e94b6f953c55dd7bc2dd85

Aliases

arxiv: 1107.5329 · arxiv_version: 1107.5329v1 · doi: 10.48550/arxiv.1107.5329 · pith_short_12: DL6S6EH2H7PF · pith_short_16: DL6S6EH2H7PFGRGK · pith_short_8: DL6S6EH2

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/DL6S6EH2H7PFGRGKL3OIVJ2O5V \
  | 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: 1afd2f10fa3fde5344ca5edc8aa74eed407e1c7a36e94b6f953c55dd7bc2dd85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93b65383058a271f669e6b14e054b61cbfb760ead65b358642f5808d87a1dc8f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-07-26T20:54:16Z",
    "title_canon_sha256": "9caf09b876c797b8bb6b156b8bf401945d8317c29d5ca37273d0a3751fd234cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5329",
    "kind": "arxiv",
    "version": 1
  }
}