Pith Number

pith:J5XAIWMO

pith:2021:J5XAIWMOLAHWMMN7IECAIHMTYF

not attested not anchored not stored refs pending

An ultralow-noise superconducting radio-frequency ion trap for frequency metrology with highly charged ions

A. Graf, C. Warnecke, D. Liebert, E. A. Dijck, J.-H. Oelmann, J. Nauta, J. R. Crespo L\'opez-Urrutia, J. Stark, L. J. Spie{\ss}, L. Schm\"oger, M. K. Rosner, M. Schwarz, P. Micke, P. O. Schmidt, S. A. King, S. Bogen, S. Chen, S. K\"uhn, T. Leopold, T. Pfeifer

arxiv:2102.02793 v1 · 2021-02-04 · 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{J5XAIWMOLAHWMMN7IECAIHMTYF}

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	2026-07-05T03:10:28.100847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f6e04598e580f6631bf4104041d93c15de4d8e501bfda26adf68d749c7130bd

Aliases

arxiv: 2102.02793 · arxiv_version: 2102.02793v1 · doi: 10.48550/arxiv.2102.02793 · pith_short_12: J5XAIWMOLAHW · pith_short_16: J5XAIWMOLAHWMMN7 · pith_short_8: J5XAIWMO

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/J5XAIWMOLAHWMMN7IECAIHMTYF \
  | 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: 4f6e04598e580f6631bf4104041d93c15de4d8e501bfda26adf68d749c7130bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "143c754a3fb1cecc67956d0b0aa24fb1561e1f1be39847b6081e72bda8e5d469",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2021-02-04T18:28:01Z",
    "title_canon_sha256": "aeec7b5a80115e773f773b1137e4e59dbfc89ab33aa9491d5140a58db644666c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02793",
    "kind": "arxiv",
    "version": 1
  }
}