Pith Number

pith:QH6NIIH2

pith:2015:QH6NIIH2MHGK74ZAZEUAPSD7IY

not attested not anchored not stored refs pending

Fold singularities on spacelike CMC surfaces in Lorentz-Minkowski space

Atsufumi Honda, Kentaro Saji, Miyuki Koiso

arxiv:1509.03050 v2 · 2015-09-10 · 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{QH6NIIH2MHGK74ZAZEUAPSD7IY}

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	2026-05-18T01:20:11.282620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81fcd420fa61ccaff320c92807c87f46360a9320a705715fccd8b29a3e9748f5

Aliases

arxiv: 1509.03050 · arxiv_version: 1509.03050v2 · doi: 10.48550/arxiv.1509.03050 · pith_short_12: QH6NIIH2MHGK · pith_short_16: QH6NIIH2MHGK74ZA · pith_short_8: QH6NIIH2

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/QH6NIIH2MHGK74ZAZEUAPSD7IY \
  | 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: 81fcd420fa61ccaff320c92807c87f46360a9320a705715fccd8b29a3e9748f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c26480c1d518eba0f0c4d6db7d8861e14c85f1d0734cbe89556f7d8cbf345ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-09-10T08:37:04Z",
    "title_canon_sha256": "d5a97daaea037c6ef486d84f6f1aa292c632a01a5c5d53cfb964d420078ab4b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03050",
    "kind": "arxiv",
    "version": 2
  }
}