Pith Number

pith:FLAUU3LS

pith:2019:FLAUU3LS4JDM7VVNIDBIU7FI7I

not attested not anchored not stored refs pending

Normality Analysis of Current World Record Computations for Catalan's Constant and Arc Length of a Lemniscate with $a=1$

Seungmin Kim

arxiv:1908.08925 v4 · 2019-08-22 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FLAUU3LS4JDM7VVNIDBIU7FI7I}

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	2026-07-05T04:02:12.400259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ac14a6d72e246cfd6ad40c28a7ca8fa2f7b98b7bfa615bf8f73cf73278b66fe

Aliases

arxiv: 1908.08925 · arxiv_version: 1908.08925v4 · doi: 10.48550/arxiv.1908.08925 · pith_short_12: FLAUU3LS4JDM · pith_short_16: FLAUU3LS4JDM7VVN · pith_short_8: FLAUU3LS

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/FLAUU3LS4JDM7VVNIDBIU7FI7I \
  | 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: 2ac14a6d72e246cfd6ad40c28a7ca8fa2f7b98b7bfa615bf8f73cf73278b66fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddffdbcc891e68a9be8edcce9cff5454284272b5634ee6b1982cbc0459b6cbcb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2019-08-22T04:34:25Z",
    "title_canon_sha256": "e9bf0b43a908db368260b5a97bcabefa5e66dc5e791d424f8e7e8002175796fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08925",
    "kind": "arxiv",
    "version": 4
  }
}