Pith Number

pith:AAPG574X

pith:2019:AAPG574XI73ZGGEAI6NTV6XC3S

not attested not anchored not stored refs pending

Towards a Transportable Aluminium Ion Quantum Logic Optical Clock

I. D. Leroux, J. Kramer, L. Pelzer, M. Stepanova, N. Scharnhorst, N. Spethmann, P. O. Schmidt, S. Hannig, T. E. Mehlst\"aubler, Z. T. Xu

arxiv:1901.02250 v2 · 2019-01-08 · 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{AAPG574XI73ZGGEAI6NTV6XC3S}

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	2026-05-17T23:42:24.811591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

001e6eff9747f7931880479b3afae2dc8e676b75089459f02d82c860a5c268aa

Aliases

arxiv: 1901.02250 · arxiv_version: 1901.02250v2 · doi: 10.48550/arxiv.1901.02250 · pith_short_12: AAPG574XI73Z · pith_short_16: AAPG574XI73ZGGEA · pith_short_8: AAPG574X

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/AAPG574XI73ZGGEAI6NTV6XC3S \
  | 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: 001e6eff9747f7931880479b3afae2dc8e676b75089459f02d82c860a5c268aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1948fd43593a491156d6079aab962f1b1eb6cc9c772f48dc6127675b1a79fcce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-01-08T11:06:00Z",
    "title_canon_sha256": "dbe0db08b64f09497ba7d6e99fa88432eef2293ef63695ef8cf38ad0eee08cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02250",
    "kind": "arxiv",
    "version": 2
  }
}