Pith Number

pith:2UMIK2J5

pith:2013:2UMIK2J5VEQMKBXUMB4VSU5YGI

not attested not anchored not stored refs pending

Computing equivariant characteristic classes of singular varieties

Andrzej Weber

arxiv:1308.0787 v1 · 2013-08-04 · math.AG · math.AT · 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{2UMIK2J5VEQMKBXUMB4VSU5YGI}

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

Defects, nested instantons and comet shaped quivers

Receipt and verification

First computed	2026-05-18T03:16:48.173605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d51885693da920c506f460795953b8323a2d04695470e43899dece3f06871a83

Aliases

arxiv: 1308.0787 · arxiv_version: 1308.0787v1 · doi: 10.48550/arxiv.1308.0787 · pith_short_12: 2UMIK2J5VEQM · pith_short_16: 2UMIK2J5VEQMKBXU · pith_short_8: 2UMIK2J5

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/2UMIK2J5VEQMKBXUMB4VSU5YGI \
  | 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: d51885693da920c506f460795953b8323a2d04695470e43899dece3f06871a83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37facc07cba9e17247faa4b19911475b66094e1dc0bd03f6f6c11c100e723c6b",
    "cross_cats_sorted": [
      "math.AT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-08-04T08:34:19Z",
    "title_canon_sha256": "a2f75dc90a98f4b91a3b19a9e554d09f799ac1c93500d2b531844d888186f3ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0787",
    "kind": "arxiv",
    "version": 1
  }
}