Pith Number

pith:L7WM5DGR

pith:2014:L7WM5DGRILAWMNWHRZMMUFJZZG

not attested not anchored not stored refs pending

Dendriform structures for restriction-deletion and restriction-contraction matroid Hopf algebras

A. Tanasa, C. Tollu, N. Hoang-Nghia

arxiv:1409.7613 v1 · 2014-09-26 · math.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7WM5DGRILAWMNWHRZMMUFJZZG}

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	2026-05-18T01:19:57.597337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fecce8cd142c16636c78e58ca1539c9af5c7848f25c409685d8e8333a023fb6

Aliases

arxiv: 1409.7613 · arxiv_version: 1409.7613v1 · doi: 10.48550/arxiv.1409.7613 · pith_short_12: L7WM5DGRILAW · pith_short_16: L7WM5DGRILAWMNWH · pith_short_8: L7WM5DGR

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/L7WM5DGRILAWMNWHRZMMUFJZZG \
  | 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: 5fecce8cd142c16636c78e58ca1539c9af5c7848f25c409685d8e8333a023fb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd0d454dc1441d38b48a5a67d4ea04ab0d110fe3b52fa0c69e7d1c36d272b918",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-26T16:12:18Z",
    "title_canon_sha256": "e5956d5f89d05594e942cafc28a281081654c08ba1181087ee622c3ca03fe598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7613",
    "kind": "arxiv",
    "version": 1
  }
}