Pith Number

pith:OTFSCLVY

pith:2007:OTFSCLVY7MTBJSFYDGHJEXZGU6

not attested not anchored not stored refs pending

Kaehlerian reduction in steps

Daniel Greb, Peter Heinzner

arxiv:0709.0205 v1 · 2007-09-03 · math.SG · 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{OTFSCLVY7MTBJSFYDGHJEXZGU6}

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	2026-05-18T04:24:35.590211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74cb212eb8fb2614c8b8198e925f26a794fcdbc70e91c2dd81e2e7757b72e6c9

Aliases

arxiv: 0709.0205 · arxiv_version: 0709.0205v1 · doi: 10.48550/arxiv.0709.0205 · pith_short_12: OTFSCLVY7MTB · pith_short_16: OTFSCLVY7MTBJSFY · pith_short_8: OTFSCLVY

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/OTFSCLVY7MTBJSFYDGHJEXZGU6 \
  | 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: 74cb212eb8fb2614c8b8198e925f26a794fcdbc70e91c2dd81e2e7757b72e6c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eae20b9ff5ef3e52dcedd5d79e3cb804a277701b90b8f333cf8efb57dec7ec84",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "2007-09-03T14:35:42Z",
    "title_canon_sha256": "991c13aa3ced653a29d9c10db2e8780381c8efe1504d098c8f315fe731335b1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.0205",
    "kind": "arxiv",
    "version": 1
  }
}