Pith Number

pith:D5534BNW

pith:2013:D5534BNWX73UZMC3IQML4TUUSI

not attested not anchored not stored refs pending

Stable cohomology of the perfect cone toroidal compactification of ${\mathcal A}_g$

Klaus Hulek, Orsola Tommasi, Samuel Grushevsky

arxiv:1307.4646 v6 · 2013-07-17 · 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{D5534BNWX73UZMC3IQML4TUUSI}

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	2026-05-18T01:22:43.921481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f7bbe05b6bff74cb05b4418be4e94921e730e8e37ab946d3ef655121f9e04c4

Aliases

arxiv: 1307.4646 · arxiv_version: 1307.4646v6 · doi: 10.48550/arxiv.1307.4646 · pith_short_12: D5534BNWX73U · pith_short_16: D5534BNWX73UZMC3 · pith_short_8: D5534BNW

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/D5534BNWX73UZMC3IQML4TUUSI \
  | 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: 1f7bbe05b6bff74cb05b4418be4e94921e730e8e37ab946d3ef655121f9e04c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a21ec96c8eb06bceb5804d3d5207b9a9fb7dee19501044989ca9a2596c13d0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-07-17T14:22:06Z",
    "title_canon_sha256": "c469f58a5caa1f5dc33fd5203f9d9c77b5313210f396de28f1a7daddb4ea3dab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4646",
    "kind": "arxiv",
    "version": 6
  }
}