Pith Number

pith:7DSQ2FG4

pith:2000:7DSQ2FG4FTUBANR4TWTF3FPTSZ

not attested not anchored not stored refs pending

Perverse coherent sheaves (after Deligne)

Roman Bezrukavnikov

arxiv:math/0005152 v2 · 2000-05-16 · math.AG · math.GT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DSQ2FG4FTUBANR4TWTF3FPTSZ}

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.

Cited by

1 paper in Pith

Semi-Bousfield classes and nonmonotone perversities

Receipt and verification

First computed	2026-07-04T17:30:50.694887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8e50d14dc2ce810363c9da65d95f3967eef27f3ce99499a78bc1356dd2284d2

Aliases

arxiv: math/0005152 · arxiv_version: math/0005152v2 · doi: 10.48550/arxiv.math/0005152 · pith_short_12: 7DSQ2FG4FTUB · pith_short_16: 7DSQ2FG4FTUBANR4 · pith_short_8: 7DSQ2FG4

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/7DSQ2FG4FTUBANR4TWTF3FPTSZ \
  | 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: f8e50d14dc2ce810363c9da65d95f3967eef27f3ce99499a78bc1356dd2284d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c6a12af01d6ad4ee44c850ef2da07f0f3e12d4ccfe06685ad1232b4fc6b97ea",
    "cross_cats_sorted": [
      "math.GT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2000-05-16T02:44:52Z",
    "title_canon_sha256": "224c851509b84a939a4818ae54592a9a7fac945329db835d137d6b7c6263fea7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0005152",
    "kind": "arxiv",
    "version": 2
  }
}