Pith Number

pith:KTLMWVV5

pith:2009:KTLMWVV5V2P5RHZYE7JRJGSWBY

not attested not anchored not stored refs pending

A bias free true random number generator

Hong Guo, Wei Wei

arxiv:0905.0779 v2 · 2009-05-06 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTLMWVV5V2P5RHZYE7JRJGSWBY}

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	2026-05-18T02:13:47.225734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54d6cb56bdae9fd89f3827d3149a560e3a32ebbd177c42aaeeb54361cf0723db

Aliases

arxiv: 0905.0779 · arxiv_version: 0905.0779v2 · doi: 10.48550/arxiv.0905.0779 · pith_short_12: KTLMWVV5V2P5 · pith_short_16: KTLMWVV5V2P5RHZY · pith_short_8: KTLMWVV5

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/KTLMWVV5V2P5RHZYE7JRJGSWBY \
  | 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: 54d6cb56bdae9fd89f3827d3149a560e3a32ebbd177c42aaeeb54361cf0723db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cdefa88936ad2fa73509cc92ba4beb744fd7098c845a09e18f9cad5b46a0a59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-06T08:48:19Z",
    "title_canon_sha256": "6301fef963c43c1c5f4799804e768cb9063b520e509a0b9f64db4827b7e7593f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0779",
    "kind": "arxiv",
    "version": 2
  }
}