Pith Number

pith:M2QGZTVQ

pith:2009:M2QGZTVQ5ZA45CTNE5MJU473JO

not attested not anchored not stored refs pending

Production of the Smallest QED Atom: True Muonium (mu^+ mu^-)

Richard F. Lebed, Stanley J. Brodsky

arxiv:0904.2225 v2 · 2009-04-15 · hep-ph · physics.atom-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{M2QGZTVQ5ZA45CTNE5MJU473JO}

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.

Cited by

1 paper in Pith

Nonlinear trident using WKB and worldline instantons

Receipt and verification

First computed	2026-07-04T15:46:58.494673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66a06cceb0ee41ce8a6d27589a73fb4ba84650c045d7868d4daf0876d64af6c1

Aliases

arxiv: 0904.2225 · arxiv_version: 0904.2225v2 · doi: 10.48550/arxiv.0904.2225 · pith_short_12: M2QGZTVQ5ZA4 · pith_short_16: M2QGZTVQ5ZA45CTN · pith_short_8: M2QGZTVQ

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/M2QGZTVQ5ZA45CTNE5MJU473JO \
  | 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: 66a06cceb0ee41ce8a6d27589a73fb4ba84650c045d7868d4daf0876d64af6c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39c46b6f3165851c0d78117b3ac7aaf0ca6bae675989a3a46dd41c274a47e03a",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-04-15T00:14:59Z",
    "title_canon_sha256": "e33ae13bdd4b8613d040e3723e013b6e53491023aea6d97e5e47904188d0c3a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2225",
    "kind": "arxiv",
    "version": 2
  }
}