Pith Number

pith:6RXSKC52

pith:2017:6RXSKC52SNJFJXV72EFMDN3XWR

not attested not anchored not stored refs pending

Hyperfine splitting in simple ions for the search of the variation of fundamental constants

Christoph H. Keitel, Natalia S. Oreshkina, Niklas Michel, Stefano M. Cavaletto, Zolt\'an Harman

arxiv:1703.09943 v2 · 2017-03-29 · 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{6RXSKC52SNJFJXV72EFMDN3XWR}

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	2026-05-18T00:34:04.862803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f46f250bba935254debfd10ac1b777b467a520c4aae0252d8c6c17f0c8e8f4ea

Aliases

arxiv: 1703.09943 · arxiv_version: 1703.09943v2 · doi: 10.48550/arxiv.1703.09943 · pith_short_12: 6RXSKC52SNJF · pith_short_16: 6RXSKC52SNJFJXV7 · pith_short_8: 6RXSKC52

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/6RXSKC52SNJFJXV72EFMDN3XWR \
  | 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: f46f250bba935254debfd10ac1b777b467a520c4aae0252d8c6c17f0c8e8f4ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ad2ea3251947f949f4550f0620476cbe5843b69d0c0198781309064e8beba5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2017-03-29T09:21:08Z",
    "title_canon_sha256": "aacaa88d20893b404237a324c0be130210978f8bdc7d719c4f0c4c16cf3286ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09943",
    "kind": "arxiv",
    "version": 2
  }
}