Pith Number

pith:JVJI45VW

pith:2019:JVJI45VWIV35MTSYTIX7NLIMVI

not attested not anchored not stored refs pending

Hour-scale persistent negative anomaly of atmospheric electrostatic field near the epicenter before earthquake

Chao Li, Chen Zeng, Chi Wang, Cong Wang, Fang Xiao, Han Wu, Hanyin Cui, Hui Li, Ilan Roth, Jiajun Song, Jianguang Guo, Jing Luo, Jiyao Xu, Lei Dai, Lei Li, Qiang Sun, Qiming Ma, Quan Guo, Saiguan Xiao, Suping Duan, Tao Chen, Vladimir Makhmutov, Xiaobin Jin, Xiaodong Peng, Xiaoxin Zhang, Xiong Hu, Xiujie Jiang, Xizhen Wang, Xuhui Shen, Yong Liu, Zhaohai He

arxiv:1907.08332 v1 · 2019-07-19 · physics.geo-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{JVJI45VWIV35MTSYTIX7NLIMVI}

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	2026-05-17T23:40:10.188211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d528e76b64577d64e589a2ff6ad0caa3028c4e5c0ca47974e6682125c7c88cc

Aliases

arxiv: 1907.08332 · arxiv_version: 1907.08332v1 · doi: 10.48550/arxiv.1907.08332 · pith_short_12: JVJI45VWIV35 · pith_short_16: JVJI45VWIV35MTSY · pith_short_8: JVJI45VW

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/JVJI45VWIV35MTSYTIX7NLIMVI \
  | 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: 4d528e76b64577d64e589a2ff6ad0caa3028c4e5c0ca47974e6682125c7c88cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e294a836977e7c361a029c2e71b2a8ffa0552b764450144e5b4de7382a4621c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2019-07-19T01:28:12Z",
    "title_canon_sha256": "64e846e7b8d69e9b0d3fcfb5e74161a2d1c1e630db9e9118af182d0ee8951e8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08332",
    "kind": "arxiv",
    "version": 1
  }
}