Pith Number

pith:J5SIIL3E

pith:2016:J5SIIL3EZDI2KRICZ2LOMH53D6

not attested not anchored not stored refs pending

The number of equisingular moduli of a rational surface singularity

Jonathan Wahl

arxiv:1603.07935 v1 · 2016-03-25 · 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{J5SIIL3EZDI2KRICZ2LOMH53D6}

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	2026-05-18T01:18:15.810549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f64842f64c8d1a54502ce96e61fbb1f89c6ce93f0ef45a248503532640ba7dc

Aliases

arxiv: 1603.07935 · arxiv_version: 1603.07935v1 · doi: 10.48550/arxiv.1603.07935 · pith_short_12: J5SIIL3EZDI2 · pith_short_16: J5SIIL3EZDI2KRIC · pith_short_8: J5SIIL3E

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/J5SIIL3EZDI2KRICZ2LOMH53D6 \
  | 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: 4f64842f64c8d1a54502ce96e61fbb1f89c6ce93f0ef45a248503532640ba7dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a3098d90c2ffc670823eaddf3ea11a6616627ad18426b75409880d1d55d65e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-03-25T15:28:25Z",
    "title_canon_sha256": "e67bfc5f84e9da3e6d4eb5c12408ea018093a992a7c9a11f497ece46c1a513fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.07935",
    "kind": "arxiv",
    "version": 1
  }
}