Pith Number

pith:4EO36AGV

pith:2009:4EO36AGVUGUZ7RWF7IGX64LBB6

not attested not anchored not stored refs pending

Exceptional Sequences over path algebras of type $A_n$ and Non-crossing Spanning Trees

Tokuji Araya

arxiv:0904.2831 v2 · 2009-04-18 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EO36AGVUGUZ7RWF7IGX64LBB6}

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	2026-05-18T04:15:36.963408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e11dbf00d5a1a99fc6c5fa0d7f71610f87c4566edb9055b1138328e21296a357

Aliases

arxiv: 0904.2831 · arxiv_version: 0904.2831v2 · doi: 10.48550/arxiv.0904.2831 · pith_short_12: 4EO36AGVUGUZ · pith_short_16: 4EO36AGVUGUZ7RWF · pith_short_8: 4EO36AGV

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/4EO36AGVUGUZ7RWF7IGX64LBB6 \
  | 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: e11dbf00d5a1a99fc6c5fa0d7f71610f87c4566edb9055b1138328e21296a357

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0ef4e1a02962b878c3563db2f500d9d7be4e399e7811ab205d43f0ec03029b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2009-04-18T08:47:26Z",
    "title_canon_sha256": "530d3523a873c7bb1b6157e95a6a3b386303dd79898ab2edb46bda9d0dbef07a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2831",
    "kind": "arxiv",
    "version": 2
  }
}