Pith Number

pith:S6FT6IE6

pith:1999:S6FT6IE6D4GORBYV7PCBEUFZNF

not attested not anchored not stored refs pending

Parabolic sheaves on surfaces and affine Lie algebra $\hat{gl}_n$

Alexander Kuznetsov (Independent Moscow University), Michael Finkelberg

arxiv:math/9903181 v2 · 1999-03-30 · 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{S6FT6IE6D4GORBYV7PCBEUFZNF}

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	2026-05-18T01:05:33.227475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

978b3f209e1f0ce88715fbc41250b9697ec340e710d924e1791794816f327910

Aliases

arxiv: math/9903181 · arxiv_version: math/9903181v2 · doi: 10.48550/arxiv.math/9903181 · pith_short_12: S6FT6IE6D4GO · pith_short_16: S6FT6IE6D4GORBYV · pith_short_8: S6FT6IE6

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/S6FT6IE6D4GORBYV7PCBEUFZNF \
  | 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: 978b3f209e1f0ce88715fbc41250b9697ec340e710d924e1791794816f327910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8b825bcc7864487aa4f7efb57a1fc6634f5714f9a9f0b0262e84c5cfa757117",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "1999-03-30T18:18:47Z",
    "title_canon_sha256": "1ed91fb83cac05f3bc885eef0e33feb31b94485637a74bc663a87652cb35ad93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9903181",
    "kind": "arxiv",
    "version": 2
  }
}