Pith Number

pith:WR2EPYCA

pith:2011:WR2EPYCAVLX7443MNJRNQI7YXL

not attested not anchored not stored refs pending

Simple-root bases for Shi arrangements

Hiroaki Terao, Takuro Abe

arxiv:1111.3510 v2 · 2011-11-15 · math.CO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WR2EPYCAVLX7443MNJRNQI7YXL}

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	2026-05-18T01:36:39.257594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b47447e040aaeffe736c6a62d823f8bad2b27403d5b2d29e2648d05c3ae53601

Aliases

arxiv: 1111.3510 · arxiv_version: 1111.3510v2 · doi: 10.48550/arxiv.1111.3510 · pith_short_12: WR2EPYCAVLX7 · pith_short_16: WR2EPYCAVLX7443M · pith_short_8: WR2EPYCA

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/WR2EPYCAVLX7443MNJRNQI7YXL \
  | 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: b47447e040aaeffe736c6a62d823f8bad2b27403d5b2d29e2648d05c3ae53601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0850ecafa3c740292de2e87813cece5af1de511d6825f6c07f84b360956919d3",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-11-15T11:53:08Z",
    "title_canon_sha256": "5930ef8deb8f467b28aa75aea4ba915450ce71c391357b6fafacefeac33ba7d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3510",
    "kind": "arxiv",
    "version": 2
  }
}