Pith Number

pith:2CT7Y774

pith:2019:2CT7Y774M2CJ5P4CGUYFVOC7VQ

not attested not anchored not stored refs pending

Perverse sheaves on semi-abelian varieties -- a survey of properties and applications

Botong Wang, Laurentiu Maxim, Yongqiang Liu

arxiv:1902.05430 v1 · 2019-02-13 · math.AT · 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{2CT7Y774M2CJ5P4CGUYFVOC7VQ}

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	2026-05-17T23:54:00.791985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0a7fc7ffc66849ebf8235305ab85fac3ef8955f110e9f607a92ca46cdacbe96

Aliases

arxiv: 1902.05430 · arxiv_version: 1902.05430v1 · doi: 10.48550/arxiv.1902.05430 · pith_short_12: 2CT7Y774M2CJ · pith_short_16: 2CT7Y774M2CJ5P4C · pith_short_8: 2CT7Y774

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/2CT7Y774M2CJ5P4CGUYFVOC7VQ \
  | 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: d0a7fc7ffc66849ebf8235305ab85fac3ef8955f110e9f607a92ca46cdacbe96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d024fe787745f737e92d56d57714369651364a5b4fcbe485cd42bd5156ff175f",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-02-13T02:56:27Z",
    "title_canon_sha256": "b3cd0ca845b5b1399f309edd536916fde5cda169b77a6946b536a449c320c5a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05430",
    "kind": "arxiv",
    "version": 1
  }
}