Pith Number

pith:IYZQE4ZO

pith:2018:IYZQE4ZOL5SDDV7OZFMKOF62T4

not attested not anchored not stored refs pending

Faraday-shielded, DC Stark-free optical lattice clock

A. D. Ludlow, D. Nicolodi, K. Beloy, N. Hinkley, R. C. Brown, R. J. Fasano, S. A. Sch\"affer, T. H. Yoon, W. F. McGrew, X. Zhang

arxiv:1803.10737 v1 · 2018-03-28 · physics.atom-ph · 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{IYZQE4ZOL5SDDV7OZFMKOF62T4}

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	2026-05-18T00:16:55.473408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

463302732e5f6431d7eec958a717da9f0cd6e2addef9043d9b4ddca06fbfcfe0

Aliases

arxiv: 1803.10737 · arxiv_version: 1803.10737v1 · doi: 10.48550/arxiv.1803.10737 · pith_short_12: IYZQE4ZOL5SD · pith_short_16: IYZQE4ZOL5SDDV7O · pith_short_8: IYZQE4ZO

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/IYZQE4ZOL5SDDV7OZFMKOF62T4 \
  | 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: 463302732e5f6431d7eec958a717da9f0cd6e2addef9043d9b4ddca06fbfcfe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76f3236a8c45dd9ba040ee5dbe833b9b2a3c52304e6d2d6ff7dfccf4baa27a0a",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-03-28T17:22:51Z",
    "title_canon_sha256": "9c0c2141ad4097a59885948474bea80881cbbc58433ad4afcfc433ab50543efb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10737",
    "kind": "arxiv",
    "version": 1
  }
}