Pith Number

pith:NFNBO5QA

pith:2019:NFNBO5QAAPXU6BQMPCS775H4JX

not attested not anchored not stored refs pending

First direct search for $2\epsilon$ and $\epsilon\beta^+$ decay of $^{144}$Sm and $2\beta^-$ decay of $^{154}$Sm

A. Di Marco, A. Incicchitti, B.N. Kropivyansky, D.V. Poda, F.A. Danevich, F. Cappella, M. Laubenstein, O.G. Polischuk, P. Belli, R. Bernabei, R. Cerulli, R.S. Boiko, S. Nisi, V. Caracciolo, V.I. Tretyak

arxiv:1910.02262 v1 · 2019-10-05 · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NFNBO5QAAPXU6BQMPCS775H4JX}

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	2026-07-05T00:18:52.902704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

695a17760003ef4f060c78a5fff4fc4df8521748d088c50fc70427827ccb2899

Aliases

arxiv: 1910.02262 · arxiv_version: 1910.02262v1 · doi: 10.48550/arxiv.1910.02262 · pith_short_12: NFNBO5QAAPXU · pith_short_16: NFNBO5QAAPXU6BQM · pith_short_8: NFNBO5QA

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/NFNBO5QAAPXU6BQMPCS775H4JX \
  | 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: 695a17760003ef4f060c78a5fff4fc4df8521748d088c50fc70427827ccb2899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9060d2eeb15b879aa8ee40b91f03221d79d848508465b6046e9512085e617df2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2019-10-05T13:02:32Z",
    "title_canon_sha256": "33246c48def27cd3fd3ee052d84963c7db9a7b8440fb7b4af0b282239753752e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.02262",
    "kind": "arxiv",
    "version": 1
  }
}