Pith Number

pith:ZQGX7NHC

pith:2012:ZQGX7NHC3TDHYDALGXZCKWSPKH

not attested not anchored not stored refs pending

An integral transform on a cylinder and the twistor correspondence

Fuminori Nakata

arxiv:1201.3450 v1 · 2012-01-17 · 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{ZQGX7NHC3TDHYDALGXZCKWSPKH}

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	2026-05-18T04:04:29.255858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc0d7fb4e2dcc67c0c0b35f2255a4f51ecffae91a2b72111237651a5b7b380fd

Aliases

arxiv: 1201.3450 · arxiv_version: 1201.3450v1 · doi: 10.48550/arxiv.1201.3450 · pith_short_12: ZQGX7NHC3TDH · pith_short_16: ZQGX7NHC3TDHYDAL · pith_short_8: ZQGX7NHC

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/ZQGX7NHC3TDHYDALGXZCKWSPKH \
  | 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: cc0d7fb4e2dcc67c0c0b35f2255a4f51ecffae91a2b72111237651a5b7b380fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b1761bfa631d4a0dea02145561c07a160676267eaf5c3293ef61d973ac5ee38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-01-17T08:16:54Z",
    "title_canon_sha256": "8cfacfa4c3352cca6d01870ff33268f39d9f9a82bbbd408fd95a304037384f30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3450",
    "kind": "arxiv",
    "version": 1
  }
}