Pith Number

pith:KQFZ7COH

pith:2015:KQFZ7COHSMDZUF4DLSBZXC5QGO

not attested not anchored not stored refs pending

On the $Q$-dependence of the lowest-order QED corrections and other properties of the ground $1^1S-$states in the two-electron ions

Alexei M. Frolov

arxiv:1509.05940 v1 · 2015-09-19 · physics.atom-ph · physics.chem-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{KQFZ7COHSMDZUF4DLSBZXC5QGO}

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	2026-05-18T01:32:36.312222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

540b9f89c793079a17835c839b8bb0338afbfc128afe66b96c1349282a30e308

Aliases

arxiv: 1509.05940 · arxiv_version: 1509.05940v1 · doi: 10.48550/arxiv.1509.05940 · pith_short_12: KQFZ7COHSMDZ · pith_short_16: KQFZ7COHSMDZUF4D · pith_short_8: KQFZ7COH

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/KQFZ7COHSMDZUF4DLSBZXC5QGO \
  | 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: 540b9f89c793079a17835c839b8bb0338afbfc128afe66b96c1349282a30e308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7460c9f44aa42425beee9d36f1d312211e10bb99600087355d1fe8294a223354",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-09-19T21:52:29Z",
    "title_canon_sha256": "7a6fee70863f936cd42b6e46fa25e63f11e0c01217de0d73839aafa1a5d97597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05940",
    "kind": "arxiv",
    "version": 1
  }
}