Pith Number

pith:ENF3WM3Q

pith:2012:ENF3WM3QL5PCJKUJEQV76YZRFS

not attested not anchored not stored refs pending

Reflexive differential forms on singular spaces -- Geometry and Cohomology

Daniel Greb, Stefan Kebekus, Thomas Peternell

arxiv:1202.3243 v2 · 2012-02-15 · math.AG · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ENF3WM3QL5PCJKUJEQV76YZRFS}

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	2026-05-18T02:18:41.298929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

234bbb33705f5e24aa89242bff63312c80f8de671525d41d3283b57f849a9059

Aliases

arxiv: 1202.3243 · arxiv_version: 1202.3243v2 · doi: 10.48550/arxiv.1202.3243 · pith_short_12: ENF3WM3QL5PC · pith_short_16: ENF3WM3QL5PCJKUJ · pith_short_8: ENF3WM3Q

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/ENF3WM3QL5PCJKUJEQV76YZRFS \
  | 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: 234bbb33705f5e24aa89242bff63312c80f8de671525d41d3283b57f849a9059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de8c954a8fbcd19fd5cea504afd8871d3c91cfea19a6887b472b2411abb6b3d",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-02-15T09:31:48Z",
    "title_canon_sha256": "29ca69f8f009647de3f5e938d0e19946dcae74576c9539946d9eddc38b2187c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3243",
    "kind": "arxiv",
    "version": 2
  }
}