Pith Number

pith:WX2N52LO

pith:2013:WX2N52LOOYXWNAEBKDDLOJZZ3U

not attested not anchored not stored refs pending

Simple surface singularities

Jan Stevens

arxiv:1303.0692 v1 · 2013-03-04 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WX2N52LOOYXWNAEBKDDLOJZZ3U}

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	2026-05-18T03:31:55.210288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5f4dee96e762f66808150c6b72739dd1ae1eccf72e6a9550dcfaec24d554d44

Aliases

arxiv: 1303.0692 · arxiv_version: 1303.0692v1 · doi: 10.48550/arxiv.1303.0692 · pith_short_12: WX2N52LOOYXW · pith_short_16: WX2N52LOOYXWNAEB · pith_short_8: WX2N52LO

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/WX2N52LOOYXWNAEBKDDLOJZZ3U \
  | 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: b5f4dee96e762f66808150c6b72739dd1ae1eccf72e6a9550dcfaec24d554d44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3dbdbb277104d3d8836c89927276af2cb00b3d5927cc61464153290bbfa59e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-03-04T13:06:56Z",
    "title_canon_sha256": "7495da8b1a277abd57b3c47b245d1cd412b0bc0d9dc2627646b0b4ca97422b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0692",
    "kind": "arxiv",
    "version": 1
  }
}