Pith Number

pith:CQE43UAZ

pith:2015:CQE43UAZI3S26MDWERWFDILT7P

not attested not anchored not stored refs pending

Isotope shift of $^{40,42,44,48}$Ca in the $4s\,^2 \rm{S}_{\frac{1}{2}} \rightarrow 4p\,^2\rm{P}_{\frac{3}{2}}$ transition

A. Krieger, C. Gorges, Ch. Geppert, J. Kr\"amer, K. Blaum, M. Hammen, N. Fr\"ommgen, R. Neugart, R. Sanchez, S. Kaufmann, W. N\"ortersh\"auser

arxiv:1507.07390 v2 · 2015-07-27 · physics.atom-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{CQE43UAZI3S26MDWERWFDILT7P}

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	2026-05-18T01:32:59.643626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1409cdd01946e5af3076246c51a173fbefb4c15feeee25bbd2aaaf09bf67d093

Aliases

arxiv: 1507.07390 · arxiv_version: 1507.07390v2 · doi: 10.48550/arxiv.1507.07390 · pith_short_12: CQE43UAZI3S2 · pith_short_16: CQE43UAZI3S26MDW · pith_short_8: CQE43UAZ

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/CQE43UAZI3S26MDWERWFDILT7P \
  | 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: 1409cdd01946e5af3076246c51a173fbefb4c15feeee25bbd2aaaf09bf67d093

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d916284b86d27154c0e6d32dccc01d015b085e8bddc6712b235234bfb6f1476",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-07-27T12:56:02Z",
    "title_canon_sha256": "01ec5cccfc241ba6af61e99557e786e7b8203c2db0914c743c5ba4fc044db630"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07390",
    "kind": "arxiv",
    "version": 2
  }
}