Pith Number

pith:FHBZS6DL

pith:2009:FHBZS6DLSMQIZ5L7Z3372S2S67

not attested not anchored not stored refs pending

Cyclic Orderings and Cyclic Arboricity of Matroids

Jan van den Heuvel, St\'ephan Thomass\'e

arxiv:0912.2929 v3 · 2009-12-15 · 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{FHBZS6DLSMQIZ5L7Z3372S2S67}

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	2026-05-18T04:17:25.179710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29c399786b93208cf57fcef7fd4b52f7d50fe6464831930975fbd7d13a8e122b

Aliases

arxiv: 0912.2929 · arxiv_version: 0912.2929v3 · doi: 10.48550/arxiv.0912.2929 · pith_short_12: FHBZS6DLSMQI · pith_short_16: FHBZS6DLSMQIZ5L7 · pith_short_8: FHBZS6DL

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/FHBZS6DLSMQIZ5L7Z3372S2S67 \
  | 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: 29c399786b93208cf57fcef7fd4b52f7d50fe6464831930975fbd7d13a8e122b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e2f585c801865dfe6bb4aaec4c442b2bd15ebc5987e7db8de0260178f26b9b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2009-12-15T15:26:57Z",
    "title_canon_sha256": "4afa98837d96d07e1e2c90d07dfc2c333ec2f99ff0538f92d0a1947a936ffc99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2929",
    "kind": "arxiv",
    "version": 3
  }
}