Pith Number

pith:2QFFGEJQ

pith:2016:2QFFGEJQWSHY6YDUWFJ4D7TPOV

not attested not anchored not stored refs pending

A transportable optical lattice clock with $7\times10^{-17}$ uncertainty

A. Al-Masoudi, Ch. Lisdat, J. Grotti, S. B. Koller, S. D\"orscher, S. H\"afner, St. Vogt, U. Sterr

arxiv:1609.06183 v1 · 2016-09-20 · physics.optics · physics.atom-ph · physics.ins-det · quant-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{2QFFGEJQWSHY6YDUWFJ4D7TPOV}

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	2026-05-18T00:50:19.009799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d40a531130b48f8f6074b153c1fe6f7576d8f0698c74a7fb70b879f758c875a5

Aliases

arxiv: 1609.06183 · arxiv_version: 1609.06183v1 · doi: 10.48550/arxiv.1609.06183 · pith_short_12: 2QFFGEJQWSHY · pith_short_16: 2QFFGEJQWSHY6YDU · pith_short_8: 2QFFGEJQ

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/2QFFGEJQWSHY6YDUWFJ4D7TPOV \
  | 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: d40a531130b48f8f6074b153c1fe6f7576d8f0698c74a7fb70b879f758c875a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "917cf998275fd8fcb79a5871c2d26b5f42e8a12be34306e8eb38da2edfbdd413",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.ins-det",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-09-20T14:04:21Z",
    "title_canon_sha256": "81d95d527dba9c52e9d63a86af4924a7f59430a36c2746bafde23b243c360794"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.06183",
    "kind": "arxiv",
    "version": 1
  }
}