Pith Number

pith:7GZLS4TX

pith:2013:7GZLS4TXRXHIEULTS7TTDR5HFS

not attested not anchored not stored refs pending

Quantum electrodynamics in a laser and the electron laser collision

Qi-Ren Zhang

arxiv:1303.7229 v5 · 2013-03-28 · 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{7GZLS4TXRXHIEULTS7TTDR5HFS}

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	2026-05-18T02:45:39.643797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9b2b972778dce82517397e731c7a72c85145b5c8091bd31596705033e18fa62

Aliases

arxiv: 1303.7229 · arxiv_version: 1303.7229v5 · doi: 10.48550/arxiv.1303.7229 · pith_short_12: 7GZLS4TXRXHI · pith_short_16: 7GZLS4TXRXHIEULT · pith_short_8: 7GZLS4TX

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/7GZLS4TXRXHIEULTS7TTDR5HFS \
  | 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: f9b2b972778dce82517397e731c7a72c85145b5c8091bd31596705033e18fa62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14e152c01cd7d0f7111348e4a92ca2cf1ecb3a1dbdf5254849dc746c915a4b78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-28T09:40:07Z",
    "title_canon_sha256": "2a11b446b44ae8ac02374f118e44366e60f400c0424679001d3720a647692256"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7229",
    "kind": "arxiv",
    "version": 5
  }
}