Pith Number

pith:EUHDCQAY

pith:2025:EUHDCQAYDGJYO7D2UAHW2ZGRPB

not attested not anchored not stored refs pending

Isotope shift spectroscopy in mercury vapors: a valid alternative to ytterbium for new physics search

Antonio Castrillo, Livio Gianfrani, Stefania Gravina

arxiv:2509.08622 v1 · 2025-09-10 · 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{EUHDCQAYDGJYO7D2UAHW2ZGRPB}

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	2026-07-05T12:08:33.364220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

250e3140181993877c7aa00f6d64d17878fa5023ce1be379fa6b70ecdc0ea1c8

Aliases

arxiv: 2509.08622 · arxiv_version: 2509.08622v1 · doi: 10.48550/arxiv.2509.08622 · pith_short_12: EUHDCQAYDGJY · pith_short_16: EUHDCQAYDGJYO7D2 · pith_short_8: EUHDCQAY

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/EUHDCQAYDGJYO7D2UAHW2ZGRPB \
  | 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: 250e3140181993877c7aa00f6d64d17878fa5023ce1be379fa6b70ecdc0ea1c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e5dfe4642bf51228ba5d8027f65f756745d473509478fdb9c44ffa544f52efd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2025-09-10T14:18:46Z",
    "title_canon_sha256": "fb4b10bf131f801f7f15b9ffa6989126e6dd54ba2fe84b6731293ebf76194623"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08622",
    "kind": "arxiv",
    "version": 1
  }
}