Pith Number

pith:AJILITLZ

pith:2015:AJILITLZUB5GGKUBATBG5UB6DQ

not attested not anchored not stored refs pending

Perverse sheaves and the topology of algebraic varieties (2015 PCMI)

Mark Andrea A. de Cataldo

arxiv:1506.03642 v2 · 2015-06-11 · 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{AJILITLZUB5GGKUBATBG5UB6DQ}

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	2026-05-18T00:59:27.719221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0250b44d79a07a632a8104c26ed03e1c25c73a0a65e7c5c50f17bbfa52bb1ede

Aliases

arxiv: 1506.03642 · arxiv_version: 1506.03642v2 · doi: 10.48550/arxiv.1506.03642 · pith_short_12: AJILITLZUB5G · pith_short_16: AJILITLZUB5GGKUB · pith_short_8: AJILITLZ

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/AJILITLZUB5GGKUBATBG5UB6DQ \
  | 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: 0250b44d79a07a632a8104c26ed03e1c25c73a0a65e7c5c50f17bbfa52bb1ede

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00be764771289266adbc3e60b7403da7edef0c900ba89b83cd78b4d076cb5439",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-06-11T12:06:38Z",
    "title_canon_sha256": "1c0779b15a5299a13886663fd730e9dce9a6f282a93f9581060c0adfe8b8328e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03642",
    "kind": "arxiv",
    "version": 2
  }
}