Pith Number

pith:P4JVPMI7

pith:2008:P4JVPMI7N3ZQG65W25B6IABIZH

not attested not anchored not stored refs pending

Deformation of Sasakian metrics

Hiraku Nozawa

arxiv:0809.4699 v5 · 2008-09-26 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4JVPMI7N3ZQG65W25B6IABIZH}

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	2026-05-18T04:11:32.052348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f1357b11f6ef3037bb6d743e40028c9ce4c639f5d8e66e395e23106a5c675be

Aliases

arxiv: 0809.4699 · arxiv_version: 0809.4699v5 · doi: 10.48550/arxiv.0809.4699 · pith_short_12: P4JVPMI7N3ZQ · pith_short_16: P4JVPMI7N3ZQG65W · pith_short_8: P4JVPMI7

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/P4JVPMI7N3ZQG65W25B6IABIZH \
  | 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: 7f1357b11f6ef3037bb6d743e40028c9ce4c639f5d8e66e395e23106a5c675be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5abceef6793190213c5bf73efb4e74616286c8c078e49cfd6613b5a5bddcedcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-09-26T19:45:38Z",
    "title_canon_sha256": "d26ffa25826ea6ed223d28ed012dd287107a05e8fb14332482d81b609deae717"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4699",
    "kind": "arxiv",
    "version": 5
  }
}