Pith Number

pith:52NOUSAH

pith:2017:52NOUSAHYQDVAFYVTQJQVH3FDT

not attested not anchored not stored refs pending

Topological and Hodge L-Classes of Singular Covering Spaces and Varieties with Trivial Canonical Class

Markus Banagl

arxiv:1706.03578 v1 · 2017-06-12 · 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{52NOUSAHYQDVAFYVTQJQVH3FDT}

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	2026-05-18T00:42:34.273901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee9aea4807c4075017159c130a9f651cf5806aafea36f3d53445cb3d22313d75

Aliases

arxiv: 1706.03578 · arxiv_version: 1706.03578v1 · doi: 10.48550/arxiv.1706.03578 · pith_short_12: 52NOUSAHYQDV · pith_short_16: 52NOUSAHYQDVAFYV · pith_short_8: 52NOUSAH

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/52NOUSAHYQDVAFYVTQJQVH3FDT \
  | 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: ee9aea4807c4075017159c130a9f651cf5806aafea36f3d53445cb3d22313d75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dcb58274f17b3ca0db331e2ec504d09382777c29ec4d64c511ff66b0a301a9b",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-06-12T11:51:26Z",
    "title_canon_sha256": "15f35027ee8534b13a730458fcfae165953db81c057b84d68e439f3232348de8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03578",
    "kind": "arxiv",
    "version": 1
  }
}