Pith Number

pith:TO7DZZMT

pith:2012:TO7DZZMTNHHALP2KLEROLLM4UE

not attested not anchored not stored refs pending

Effective de Rham Cohomology - The General Case

Peter Scheiblechner

arxiv:1203.5706 v2 · 2012-03-26 · math.AG · cs.CC · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TO7DZZMTNHHALP2KLEROLLM4UE}

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	2026-05-18T00:01:23.886630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bbe3ce59369ce05bf4a5922e5ad9ca100fc7f9bbe324524dd2bccb6caf86a85

Aliases

arxiv: 1203.5706 · arxiv_version: 1203.5706v2 · doi: 10.48550/arxiv.1203.5706 · pith_short_12: TO7DZZMTNHHA · pith_short_16: TO7DZZMTNHHALP2K · pith_short_8: TO7DZZMT

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/TO7DZZMTNHHALP2KLEROLLM4UE \
  | 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: 9bbe3ce59369ce05bf4a5922e5ad9ca100fc7f9bbe324524dd2bccb6caf86a85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d3bc296d0188bc211eb37f81a1624b80bfe99e7672db87a2714d82de3d6eeb5",
    "cross_cats_sorted": [
      "cs.CC",
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-03-26T15:54:20Z",
    "title_canon_sha256": "f05f22cad24edf17df2cb1409ede03c394ef8133c0b0fdf16f9097f50cc4cbb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5706",
    "kind": "arxiv",
    "version": 2
  }
}