Pith Number

pith:74NQPISU

pith:2009:74NQPISUH6TSPCB53M5WH7WQH7

not attested not anchored not stored refs pending

Notes on Recent Approaches Concerning the Kirchhoff-Law-Johnson-Noise-based Secure Key Exchange

Laszlo B. Kish, Tamas Horvath

arxiv:0903.2071 v5 · 2009-03-12 · physics.gen-ph · cs.CR · physics.class-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{74NQPISUH6TSPCB53M5WH7WQH7}

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	2026-05-18T03:00:01.460950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff1b07a2543fa727883ddb3b63fed03fed3f789fe9ef768565b641dd9cf613dd

Aliases

arxiv: 0903.2071 · arxiv_version: 0903.2071v5 · doi: 10.48550/arxiv.0903.2071 · pith_short_12: 74NQPISUH6TS · pith_short_16: 74NQPISUH6TSPCB5 · pith_short_8: 74NQPISU

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/74NQPISUH6TSPCB53M5WH7WQH7 \
  | 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: ff1b07a2543fa727883ddb3b63fed03fed3f789fe9ef768565b641dd9cf613dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c95c26d2604a0ea3c955332c8521db4bcf24669b374d84054d5d995988aaf420",
    "cross_cats_sorted": [
      "cs.CR",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2009-03-12T16:55:25Z",
    "title_canon_sha256": "8015b927e559b7940491382f02137083faa0c2bf2a0cc6a3a882a21f3e8ed817"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2071",
    "kind": "arxiv",
    "version": 5
  }
}