Pith Number

pith:QKD474QS

pith:2018:QKD474QSBD6RVBGJCZXIIBILW6

not attested not anchored not stored refs pending

A surface of degree $24$ with $1440$ singularities of type $D\_4$

C\'edric Bonnaf\'e (IMAG)

arxiv:1804.08388 v4 · 2018-04-23 · math.RT · math.AG · 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{QKD474QSBD6RVBGJCZXIIBILW6}

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	2026-05-18T00:11:49.322944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8287cff21208fd1a84c9166e84050bb7a5ab092be4fb027cbb4591ebd2707e7c

Aliases

arxiv: 1804.08388 · arxiv_version: 1804.08388v4 · doi: 10.48550/arxiv.1804.08388 · pith_short_12: QKD474QSBD6R · pith_short_16: QKD474QSBD6RVBGJ · pith_short_8: QKD474QS

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/QKD474QSBD6RVBGJCZXIIBILW6 \
  | 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: 8287cff21208fd1a84c9166e84050bb7a5ab092be4fb027cbb4591ebd2707e7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "901f5452400e4abad324e90af0c8e69eb4777c0aeaa8fa882434514c5c605b44",
    "cross_cats_sorted": [
      "math.AG",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2018-04-23T13:06:51Z",
    "title_canon_sha256": "2c9fc5bf24933ce947dcc124d183313429344e896765b3cc812b4c931327b29b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08388",
    "kind": "arxiv",
    "version": 4
  }
}