Pith Number

pith:QWDWH27F

pith:2019:QWDWH27F74LZQNPVWPQLXKUOJW

not attested not anchored not stored refs pending

Revisiting the $O(\alpha^2)$ Initial State QED Corrections to $e^+e^-$ Annihilation into a Neutral Boson

A. De Freitas, C.G. Raab, J. Bl\"umlein, K. Sch\"onwald

arxiv:1911.05029 v1 · 2019-11-12 · hep-ph · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWDWH27F74LZQNPVWPQLXKUOJW}

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	2026-07-05T07:15:41.458252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

858763ebe5ff179835f5b3e0bbaa8e4d8f712d5db8e94172b1eac2910c4029d3

Aliases

arxiv: 1911.05029 · arxiv_version: 1911.05029v1 · doi: 10.48550/arxiv.1911.05029 · pith_short_12: QWDWH27F74LZ · pith_short_16: QWDWH27F74LZQNPV · pith_short_8: QWDWH27F

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/QWDWH27F74LZQNPVWPQLXKUOJW \
  | 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: 858763ebe5ff179835f5b3e0bbaa8e4d8f712d5db8e94172b1eac2910c4029d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6baae3075dbcc9d8696c488203517d889eb713b1bb25b88de27acfbf28f480f4",
    "cross_cats_sorted": [
      "hep-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-11-12T17:40:27Z",
    "title_canon_sha256": "cec9a9438af8aaf5dc87d53645f12d559e234a1487b7e20dbc5e8b18af420ac5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.05029",
    "kind": "arxiv",
    "version": 1
  }
}