Pith Number

pith:BUAXRKLA

pith:2025:BUAXRKLA7JAXQ2ATVYVC53B44D

not attested not anchored not stored refs pending

Non-smoothable curve singularities

Jan Stevens

arxiv:2504.00854 v2 · 2025-04-01 · 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{BUAXRKLA7JAXQ2ATVYVC53B44D}

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	2026-06-02T03:05:03.429097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d0178a960fa41786813ae2a2eec3ce0f9ffb40fdd2daa1c605ee7f075ed7d39

Aliases

arxiv: 2504.00854 · arxiv_version: 2504.00854v2 · doi: 10.48550/arxiv.2504.00854 · pith_short_12: BUAXRKLA7JAX · pith_short_16: BUAXRKLA7JAXQ2AT · pith_short_8: BUAXRKLA

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/BUAXRKLA7JAXQ2ATVYVC53B44D \
  | 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: 0d0178a960fa41786813ae2a2eec3ce0f9ffb40fdd2daa1c605ee7f075ed7d39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f3747a4a013b52ebf6770ad53bb072bc1fd621ab08791298ce3a44e5160e218",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-04-01T14:43:59Z",
    "title_canon_sha256": "8c9456d674e3657fc180345e6edc6be6efc09eecaca807854f67d59997a69447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.00854",
    "kind": "arxiv",
    "version": 2
  }
}