Pith Number

pith:C7BLNDIK

pith:2003:C7BLNDIK7IW36HNFXUHHNTVSLS

not attested not anchored not stored refs pending

High Order QED Corrections in Physics of Positronium

A.A. Penin

arxiv:hep-ph/0308204 v3 · 2003-08-20 · hep-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{C7BLNDIK7IW36HNFXUHHNTVSLS}

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	2026-07-04T16:40:51.540153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17c2b68d0afa2dbf1da5bd0e76ceb25cbad17572d8c062d1e1a1d53ebfae91d0

Aliases

arxiv: hep-ph/0308204 · arxiv_version: hep-ph/0308204v3 · doi: 10.48550/arxiv.hep-ph/0308204 · pith_short_12: C7BLNDIK7IW3 · pith_short_16: C7BLNDIK7IW36HNF · pith_short_8: C7BLNDIK

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/C7BLNDIK7IW36HNFXUHHNTVSLS \
  | 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: 17c2b68d0afa2dbf1da5bd0e76ceb25cbad17572d8c062d1e1a1d53ebfae91d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37f1128d7f9f1bd38448fe89cb1ea0c93b5e664ce447329765c46de2e60b7f24",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2003-08-20T09:51:01Z",
    "title_canon_sha256": "1e6e8ecbdedc6f1afeab73b01d07795f8d0fc55380a4933a5e46042d58c2815c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0308204",
    "kind": "arxiv",
    "version": 3
  }
}