Pith Number

pith:SSWLBM2Q

pith:2014:SSWLBM2QJXI2O3IZXLHEYUDRSM

not attested not anchored not stored refs pending

Absolute frequency measurement of the 7s$^2$ $^1$S$_0$ $-$ 7s7p $^{1}$P$_1$ transition in $^{225}$Ra

A. Groot, B. Santra, K. Jungmann, L. Willmann, U. Dammalapati

arxiv:1409.8659 v1 · 2014-09-30 · 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{SSWLBM2QJXI2O3IZXLHEYUDRSM}

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	2026-05-18T02:39:55.343833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94acb0b3504dd1a76d19bace4c5071933b7c4bfd132e9b5c51b94bc8ae6dea01

Aliases

arxiv: 1409.8659 · arxiv_version: 1409.8659v1 · doi: 10.48550/arxiv.1409.8659 · pith_short_12: SSWLBM2QJXI2 · pith_short_16: SSWLBM2QJXI2O3IZ · pith_short_8: SSWLBM2Q

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/SSWLBM2QJXI2O3IZXLHEYUDRSM \
  | 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: 94acb0b3504dd1a76d19bace4c5071933b7c4bfd132e9b5c51b94bc8ae6dea01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2db3ea7bd43d2fea94d927c893a3590b6f8b379b9e96a1764800be668db1ef6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2014-09-30T19:15:52Z",
    "title_canon_sha256": "81f414aa881ca04591cc7079ab50673b1fe1e6205c6406d300e11ab3770f7ce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8659",
    "kind": "arxiv",
    "version": 1
  }
}