Pith Number

pith:V3Y2E5MX

pith:2015:V3Y2E5MXPCKEB7ULVHMUECYI2M

not attested not anchored not stored refs pending

Precision Test of Many-Body QED in the Be$^+$ $2p$ Fine Structure Doublet Using Short-Lived Isotopes

Andreas Krieger, Christopher Geppert, Deyan T. Yordanov, Gerda Neyens, J\"org Kr\"amer, Kim Kreim, Klaus Blaum, Krzysztof Pachucki, Magdalena Kowalska, Mariusz Puchalski, Mark L. Bissell, Michael Hammen, Nadja Fr\"ommgen, Rainer Neugart, Rodolfo S\'anchez, Wilfried N\"ortersh\"auser

arxiv:1507.03830 v1 · 2015-07-14 · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V3Y2E5MXPCKEB7ULVHMUECYI2M}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:36:52.476975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aef1a27597789440fe8ba9d9420b08d3163823901f42b66022114db458e7d352

Aliases

arxiv: 1507.03830 · arxiv_version: 1507.03830v1 · doi: 10.48550/arxiv.1507.03830 · pith_short_12: V3Y2E5MXPCKE · pith_short_16: V3Y2E5MXPCKEB7UL · pith_short_8: V3Y2E5MX

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/V3Y2E5MXPCKEB7ULVHMUECYI2M \
  | 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: aef1a27597789440fe8ba9d9420b08d3163823901f42b66022114db458e7d352

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305818671362cad3752fa4c0cb30546338c549813afb86139f5263dcbfd440e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-07-14T12:50:44Z",
    "title_canon_sha256": "e1bd3da4a48afedfa7ffcbd0bba9d6e4b14c8a743d20f20c930fa16cbdb91d85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03830",
    "kind": "arxiv",
    "version": 1
  }
}