Pith Number

pith:JQANRGNT

pith:2018:JQANRGNTFT3FFDFVXETNLRYZ2L

not attested not anchored not stored refs pending

The Morse index of a triply periodic minimal surface

Norio Ejiri, Toshihiro Shoda

arxiv:1801.10388 v1 · 2018-01-31 · 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{JQANRGNTFT3FFDFVXETNLRYZ2L}

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	2026-05-18T00:24:40.934450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c00d899b32cf6528cb5b926d5c719d2e69c807d4e28290688d73cce37c5b313

Aliases

arxiv: 1801.10388 · arxiv_version: 1801.10388v1 · doi: 10.48550/arxiv.1801.10388 · pith_short_12: JQANRGNTFT3F · pith_short_16: JQANRGNTFT3FFDFV · pith_short_8: JQANRGNT

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/JQANRGNTFT3FFDFVXETNLRYZ2L \
  | 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: 4c00d899b32cf6528cb5b926d5c719d2e69c807d4e28290688d73cce37c5b313

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06256a54bfcb035611552c1a7baa8473edf1f63844da6d78fa08116afff13ef5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-01-31T10:29:50Z",
    "title_canon_sha256": "2d99f026dff39f35810b1987eef26cb3ad68b8180743e743fbc0ad5f18e9dbf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.10388",
    "kind": "arxiv",
    "version": 1
  }
}