Pith Number

pith:IOC7FXBB

pith:2022:IOC7FXBBDHAKSW2EOGZIQLYZIM

not attested not anchored not stored refs pending

Universality-of-clock-rates test using atom interferometry with $T^{3}$ scaling

Alexander Friedrich, Christian Ufrecht, Enno Giese, Fabio Di Pumpo

arxiv:2204.02156 v3 · 2022-04-05 · quant-ph · gr-qc · 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{IOC7FXBBDHAKSW2EOGZIQLYZIM}

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	2026-07-05T05:55:57.108878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4385f2dc2119c0a95b4471b2882f194320402995ad289e624a09326e7eb9d300

Aliases

arxiv: 2204.02156 · arxiv_version: 2204.02156v3 · doi: 10.48550/arxiv.2204.02156 · pith_short_12: IOC7FXBBDHAK · pith_short_16: IOC7FXBBDHAKSW2E · pith_short_8: IOC7FXBB

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/IOC7FXBBDHAKSW2EOGZIQLYZIM \
  | 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: 4385f2dc2119c0a95b4471b2882f194320402995ad289e624a09326e7eb9d300

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cff829b6680e87f4a1ce1b6a001f7940262cd0f4b2b7c14d5e9afe3e116e24c",
    "cross_cats_sorted": [
      "gr-qc",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-04-05T12:26:56Z",
    "title_canon_sha256": "22eae6685e6e8acbf0c6bda6c80f1ac0773dab610b83bf50a97f3f070a22bf02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.02156",
    "kind": "arxiv",
    "version": 3
  }
}