Pith Number

pith:JWQC5V3W

pith:2014:JWQC5V3WMURGZQHLV2SF4GHVET

not attested not anchored not stored refs pending

Index of Kato surfaces

Akira Fujiki, Massimiliano Pontecorvo

arxiv:1406.2214 v1 · 2014-06-09 · 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{JWQC5V3WMURGZQHLV2SF4GHVET}

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	2026-05-18T02:50:11.263633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4da02ed77665226cc0ebaea45e18f524dee12fa59bf957f1bd7a016b04582685

Aliases

arxiv: 1406.2214 · arxiv_version: 1406.2214v1 · doi: 10.48550/arxiv.1406.2214 · pith_short_12: JWQC5V3WMURG · pith_short_16: JWQC5V3WMURGZQHL · pith_short_8: JWQC5V3W

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/JWQC5V3WMURGZQHLV2SF4GHVET \
  | 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: 4da02ed77665226cc0ebaea45e18f524dee12fa59bf957f1bd7a016b04582685

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0ce61991b97db8b16c7b8514da5815b665435c87d7d283aedf41967c7ebd56f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-06-09T15:30:28Z",
    "title_canon_sha256": "81543ae7d9b30757d73973877bf539084adb24e67da1753ea76cea9d0edb818d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2214",
    "kind": "arxiv",
    "version": 1
  }
}