Pith Number

pith:CXIGAGP5

pith:2011:CXIGAGP52MWC5PDGC2ABPQJDLH

not attested not anchored not stored refs pending

About the computation of the signature of surface singularities z^N+g(x,y)=0

Gerhard Pfister, Muhammad Ahsan Banyamin, Stefan Steidel

arxiv:1103.5826 v2 · 2011-03-30 · 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{CXIGAGP52MWC5PDGC2ABPQJDLH}

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	2026-05-18T04:04:43.680678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15d06019fdd32c2ebc66168017c12359fd9eb0d96f8e095c2e4b92d3c6be15ab

Aliases

arxiv: 1103.5826 · arxiv_version: 1103.5826v2 · doi: 10.48550/arxiv.1103.5826 · pith_short_12: CXIGAGP52MWC · pith_short_16: CXIGAGP52MWC5PDG · pith_short_8: CXIGAGP5

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/CXIGAGP52MWC5PDGC2ABPQJDLH \
  | 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: 15d06019fdd32c2ebc66168017c12359fd9eb0d96f8e095c2e4b92d3c6be15ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5c7087ed3b0f1444ab1cb6987ed84af113060d9ad998f1761e4e191bc308279",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-03-30T05:56:23Z",
    "title_canon_sha256": "7ab308ca8bd90fec76acff537e59daec9d9db350829e984d3c16eb1d3de83bd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5826",
    "kind": "arxiv",
    "version": 2
  }
}