Pith Number

pith:HPFFTQNS

pith:2019:HPFFTQNS4OAJP7RJSNLDO6EIUI

not attested not anchored not stored refs pending

Effects of the fermionic vacuum polarization in QED

F.A. Barone, F.E. Barone, M.F.X.P. Medeiros

arxiv:1905.10042 v1 · 2019-05-24 · hep-th · 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{HPFFTQNS4OAJP7RJSNLDO6EIUI}

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	2026-05-17T23:45:11.590727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bca59c1b2e38097fe299356377888a236bb0ae5c6b7783b4cf6e19a0da58137

Aliases

arxiv: 1905.10042 · arxiv_version: 1905.10042v1 · doi: 10.48550/arxiv.1905.10042 · pith_short_12: HPFFTQNS4OAJ · pith_short_16: HPFFTQNS4OAJP7RJ · pith_short_8: HPFFTQNS

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/HPFFTQNS4OAJP7RJSNLDO6EIUI \
  | 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: 3bca59c1b2e38097fe299356377888a236bb0ae5c6b7783b4cf6e19a0da58137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28209a857000021e1e750efe0ddad5aba94c999ea82bee7eefcadcf0023143ce",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-05-24T05:44:48Z",
    "title_canon_sha256": "b6823f26f3044de54167eb6b2e75277a950dcbff16fab33761c8cda57dd52b7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10042",
    "kind": "arxiv",
    "version": 1
  }
}