Pith Number

pith:RNRPZEMW

pith:2016:RNRPZEMWWGJUQRR6JIZHDKDJDY

not attested not anchored not stored refs pending

Unexpectedly large difference of the electron density at the nucleus in the 4p $^2$P$_{1/2,3/2}$ fine-structure doublet of Ca$^+$

A. Surzhykov, B.K. Sahoo, C. Gorges, C. Shi, F. Gebert, F. Wolf, J.C. Berengut, J.C. Heip, P.O. Schmidt, S. Kaufmann, V.A. Yerokhin, W. N\"ortersh\"auser

arxiv:1608.07572 v1 · 2016-08-26 · physics.atom-ph · 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{RNRPZEMWWGJUQRR6JIZHDKDJDY}

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	2026-05-18T00:53:30.449777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b62fc9196b19348463e4a3271a8691e00442b0ce9f0ac881428b7067dcf5fd6

Aliases

arxiv: 1608.07572 · arxiv_version: 1608.07572v1 · doi: 10.48550/arxiv.1608.07572 · pith_short_12: RNRPZEMWWGJU · pith_short_16: RNRPZEMWWGJUQRR6 · pith_short_8: RNRPZEMW

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/RNRPZEMWWGJUQRR6JIZHDKDJDY \
  | 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: 8b62fc9196b19348463e4a3271a8691e00442b0ce9f0ac881428b7067dcf5fd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16a3fe1cd36c68b65d1c153c87ba8c1f2042f7c751aa06f435f16f6e54f962ca",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2016-08-26T19:59:53Z",
    "title_canon_sha256": "faa8a20805a5532a41c56472645900adad5fa8a593e0fe09bd93f15a399849ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.07572",
    "kind": "arxiv",
    "version": 1
  }
}