Pith Number

pith:7IL4YLT3

pith:2013:7IL4YLT33GLGA4LDEUXVP25SGZ

not attested not anchored not stored refs pending

Variational Quantum Electrodynamics

Fabio Siringo

arxiv:1308.2913 v2 · 2013-08-13 · hep-ph · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7IL4YLT33GLGA4LDEUXVP25SGZ}

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	2026-05-18T03:02:57.128375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa17cc2e7bd996607163252f57ebb2365b1c3b7f6998e4362226d51622f0549b

Aliases

arxiv: 1308.2913 · arxiv_version: 1308.2913v2 · doi: 10.48550/arxiv.1308.2913 · pith_short_12: 7IL4YLT33GLG · pith_short_16: 7IL4YLT33GLGA4LD · pith_short_8: 7IL4YLT3

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/7IL4YLT33GLGA4LDEUXVP25SGZ \
  | 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: fa17cc2e7bd996607163252f57ebb2365b1c3b7f6998e4362226d51622f0549b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6345d859551afb3ed3c38b74eff2d49d4eff72f27c6b30881daa9c72fde27a85",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-08-13T16:50:09Z",
    "title_canon_sha256": "73ac7635ced9fe18bb4e005101f8806615ac93319ea1f303801ef9cee736b684"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2913",
    "kind": "arxiv",
    "version": 2
  }
}