Pith Number

pith:7YDIU4FP

pith:2019:7YDIU4FP6JJ2MFFFICJKWZ4PQC

not attested not anchored not stored refs pending

United test of the equivalence principle at $10^{-10}$ level using mass and internal energy specified atoms

Chao Zhou, Chuan He, Dong-feng Gao, Jin Wang, Lin Zhou, Ming-Sheng Zhan, Qi Wang, Run-Dong Xu, Sachin Barthwal, Si-Tong Yan, Wei-Tao Duan, Wei-Tou Ni, Xi Chen, Yuan-Zhong Zhang, Yu-Hang Ji, Zhuo Hou, Zong-Yuan Xiong

arxiv:1904.07096 v2 · 2019-04-15 · 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{7YDIU4FP6JJ2MFFFICJKWZ4PQC}

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	2026-07-05T03:10:24.336274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe068a70aff253a614a54092ab678f80a2720391fe27669591ede39ce8f863ca

Aliases

arxiv: 1904.07096 · arxiv_version: 1904.07096v2 · doi: 10.48550/arxiv.1904.07096 · pith_short_12: 7YDIU4FP6JJ2 · pith_short_16: 7YDIU4FP6JJ2MFFF · pith_short_8: 7YDIU4FP

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/7YDIU4FP6JJ2MFFFICJKWZ4PQC \
  | 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: fe068a70aff253a614a54092ab678f80a2720391fe27669591ede39ce8f863ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de76402e57bafa0b0620ec31a755397f2a81a6169ddebabadc48bcdcc554283",
    "cross_cats_sorted": [
      "gr-qc",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-04-15T14:56:15Z",
    "title_canon_sha256": "d4e3cfafc39d48d60bfa70a67d4fe0f51260e64a6b2f2eb836545dc4eb750733"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07096",
    "kind": "arxiv",
    "version": 2
  }
}