Pith Number

pith:4R47NCVH

pith:2014:4R47NCVHWEBSSO63ZZIBG7AGAI

not attested not anchored not stored refs pending

Intrinsic properties of surfaces with singularities

Atsufumi Honda, Kentaro Saji, Kosuke Naokawa, Kotaro Yamada, Masaaki Umehara, Masaru Hasegawa

arxiv:1409.0281 v2 · 2014-09-01 · 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{4R47NCVHWEBSSO63ZZIBG7AGAI}

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	2026-05-18T02:31:59.461449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e479f68aa7b103293bdbce50137c06023d906f8521be3eeb19d977e7f7631569

Aliases

arxiv: 1409.0281 · arxiv_version: 1409.0281v2 · doi: 10.48550/arxiv.1409.0281 · pith_short_12: 4R47NCVHWEBS · pith_short_16: 4R47NCVHWEBSSO63 · pith_short_8: 4R47NCVH

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/4R47NCVHWEBSSO63ZZIBG7AGAI \
  | 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: e479f68aa7b103293bdbce50137c06023d906f8521be3eeb19d977e7f7631569

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "721546e2f6f52413e9195ffb074fb0f798ea7674ed338ca3eb5e84f449317b1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-09-01T02:15:26Z",
    "title_canon_sha256": "d8ce7ae18db1c2343bc348c488fc0cfe0469429651b8e8772da9c12e40fa65e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0281",
    "kind": "arxiv",
    "version": 2
  }
}