Pith Number

pith:YV22LOF6

pith:2013:YV22LOF6KBMI4FJML4OXB6HRT5

not attested not anchored not stored refs pending

A note on graded hypersurface singularities

Patricio Gallardo

arxiv:1310.6734 v2 · 2013-10-24 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YV22LOF6KBMI4FJML4OXB6HRT5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:03:31.698153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c575a5b8be50588e152c5f1d70f8f19f4b0df215ecd694c30da720b6524e8f5e

Aliases

arxiv: 1310.6734 · arxiv_version: 1310.6734v2 · doi: 10.48550/arxiv.1310.6734 · pith_short_12: YV22LOF6KBMI · pith_short_16: YV22LOF6KBMI4FJM · pith_short_8: YV22LOF6

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/YV22LOF6KBMI4FJML4OXB6HRT5 \
  | 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: c575a5b8be50588e152c5f1d70f8f19f4b0df215ecd694c30da720b6524e8f5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6db4a4b8059242a0b6a053ebdf72a45183f8c0471794650e55d08073ddbc2543",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-10-24T19:59:39Z",
    "title_canon_sha256": "300b736e7ea3164ae0085f3a4b7a1ea118615006905962548957d2b89c3cd302"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6734",
    "kind": "arxiv",
    "version": 2
  }
}