Pith Number

pith:OK5EY7KH

pith:2001:OK5EY7KHEO2BT2EEYEBDCISP2X

not attested not anchored not stored refs pending

A remark on resolution of terminal singularities

Yuri Prokhorov

arxiv:math/0110250 v1 · 2001-10-23 · 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{OK5EY7KHEO2BT2EEYEBDCISP2X}

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	2026-05-18T01:38:29.792568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72ba4c7d4723b419e884c10231224fd5e4e143a45379f026e9bd4839b17830b5

Aliases

arxiv: math/0110250 · arxiv_version: math/0110250v1 · doi: 10.48550/arxiv.math/0110250 · pith_short_12: OK5EY7KHEO2B · pith_short_16: OK5EY7KHEO2BT2EE · pith_short_8: OK5EY7KH

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/OK5EY7KHEO2BT2EEYEBDCISP2X \
  | 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: 72ba4c7d4723b419e884c10231224fd5e4e143a45379f026e9bd4839b17830b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05347a5ae644a24563100b65a6e284b4779753a8aac26eefe3b9c3c04e9d02a5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-10-23T06:31:11Z",
    "title_canon_sha256": "b9d859ebe41c31602c867b957cc79fb40c6fed8ad886c940a048ed8e502ab949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0110250",
    "kind": "arxiv",
    "version": 1
  }
}