Pith Number

pith:KLCTYGYN

pith:2017:KLCTYGYNKMCMQXXUBA5SKAKEOZ

not attested not anchored not stored refs pending

Obtuse constants of Alexandrov spaces

Ayato Mitsuishi, Takao Yamaguchi

arxiv:1710.00497 v2 · 2017-10-02 · math.DG · math.MG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KLCTYGYNKMCMQXXUBA5SKAKEOZ}

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	2026-05-18T00:16:23.589011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52c53c1b0d5304c85ef4083b250144764e72ddeeae956a31f90490dd9871f3e9

Aliases

arxiv: 1710.00497 · arxiv_version: 1710.00497v2 · doi: 10.48550/arxiv.1710.00497 · pith_short_12: KLCTYGYNKMCM · pith_short_16: KLCTYGYNKMCMQXXU · pith_short_8: KLCTYGYN

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/KLCTYGYNKMCMQXXUBA5SKAKEOZ \
  | 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: 52c53c1b0d5304c85ef4083b250144764e72ddeeae956a31f90490dd9871f3e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9b02b9074415bf2f5399885050669ddb1b8a1f1a9b38b8a9d773142d8e3b664",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-10-02T06:05:18Z",
    "title_canon_sha256": "da959607fbf2902817213c6aafcaf7b5ab30ea252764b413f11a085166bb47e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00497",
    "kind": "arxiv",
    "version": 2
  }
}