Pith Number

pith:OV5UFF2U

pith:2019:OV5UFF2ULPGVJQFAKMDLDLRKS4

not attested not anchored not stored refs pending

A Proof of First Digit Law from Laplace Transform

Bo-Qiang Ma, Mingshu Cong

arxiv:1908.04670 v1 · 2019-08-13 · stat.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OV5UFF2ULPGVJQFAKMDLDLRKS4}

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	2026-07-04T23:55:15.430929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

757b4297545bcd54c0a05306b1ae2a971246c83a781fe34f29b580f235f4b111

Aliases

arxiv: 1908.04670 · arxiv_version: 1908.04670v1 · doi: 10.48550/arxiv.1908.04670 · pith_short_12: OV5UFF2ULPGV · pith_short_16: OV5UFF2ULPGVJQFA · pith_short_8: OV5UFF2U

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/OV5UFF2ULPGVJQFAKMDLDLRKS4 \
  | 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: 757b4297545bcd54c0a05306b1ae2a971246c83a781fe34f29b580f235f4b111

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57603ebe34a9a36bcc009c5974ba1cb121e40e3483dcff93c6be720e4b608ca6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.OT",
    "submitted_at": "2019-08-13T14:38:40Z",
    "title_canon_sha256": "167085c0b5d6b10ed51be3304102e8b46ea3167a268c0ea41b63ba50836bdbb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04670",
    "kind": "arxiv",
    "version": 1
  }
}