Pith Number

pith:HBBH5SWX

pith:2018:HBBH5SWX7AY4TZC5KZ6YWNJIUW

not attested not anchored not stored refs pending

Testing the Universality of Free Fall at ${10^{ - 10}}$ level by Comparing the Atoms in Different Hyperfine States with Bragg Diffraction

Ke Zhang, Le-Le Chen, Lu-Shuai Cao, Min-Kang Zhou, Qin Luo, Wen-Jie Xu, Xiao-Chun Duan, Yuan Cheng, Zhong-Kun Hu

arxiv:1805.07758 v2 · 2018-05-20 · quant-ph · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBBH5SWX7AY4TZC5KZ6YWNJIUW}

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	2026-05-18T00:14:33.705152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38427ecad7f831c9e45d567d8b3528a59e25b278f986e6e48c3270c5e2511a96

Aliases

arxiv: 1805.07758 · arxiv_version: 1805.07758v2 · doi: 10.48550/arxiv.1805.07758 · pith_short_12: HBBH5SWX7AY4 · pith_short_16: HBBH5SWX7AY4TZC5 · pith_short_8: HBBH5SWX

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/HBBH5SWX7AY4TZC5KZ6YWNJIUW \
  | 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: 38427ecad7f831c9e45d567d8b3528a59e25b278f986e6e48c3270c5e2511a96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad53ec6b13dd82f7c2bf0bc69bcb53a83b467d76b6d23c6f8d47cdfcab2cc2ab",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-05-20T12:07:57Z",
    "title_canon_sha256": "5eb1c4fae82a97a2fcdbac1e4f896c9af7b1c00d3e45f3cbbd2adb0c0ad87587"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07758",
    "kind": "arxiv",
    "version": 2
  }
}