Pith Number

pith:7T2NSO43

pith:2010:7T2NSO43OPFHJLOTTUGNFXCBFO

not attested not anchored not stored refs pending

Differential Forms on Log Canonical Spaces

Daniel Greb, Sandor J. Kovacs, Stefan Kebekus, Thomas Peternell

arxiv:1003.2913 v4 · 2010-03-15 · 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{7T2NSO43OPFHJLOTTUGNFXCBFO}

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	2026-05-18T02:24:37.194364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcf4d93b9b73ca74add39d0cd2dc412ba09d63c50639db8544bd6a4c27bc48f2

Aliases

arxiv: 1003.2913 · arxiv_version: 1003.2913v4 · doi: 10.48550/arxiv.1003.2913 · pith_short_12: 7T2NSO43OPFH · pith_short_16: 7T2NSO43OPFHJLOT · pith_short_8: 7T2NSO43

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/7T2NSO43OPFHJLOTTUGNFXCBFO \
  | 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: fcf4d93b9b73ca74add39d0cd2dc412ba09d63c50639db8544bd6a4c27bc48f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47f3030aae3b1438f39ca0a05fee4598023dbdf3cd9ef59d35efff317205281d",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-03-15T12:46:20Z",
    "title_canon_sha256": "bc825d7c2e6c903a3c5591b0f798783f393eb45a43b6dc1231ac536823d5b2d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.2913",
    "kind": "arxiv",
    "version": 4
  }
}