Pith Number

pith:ZT4X4VCW

pith:2019:ZT4X4VCWHP3IFD6PEZZD2LC2XP

not attested not anchored not stored refs pending

A paradigm for developing earthquake probability forecasts based on geoelectric data

Chien-Chih Chen, Didier Sornette, Guy Ouillon, Hong-Jia Chen

arxiv:1907.05623 v1 · 2019-07-12 · 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{ZT4X4VCWHP3IFD6PEZZD2LC2XP}

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	2026-05-17T23:40:47.602988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf97e54563bf6828fcf26723d2c5abbdb6ed99944084355c1ebddf67080d63f

Aliases

arxiv: 1907.05623 · arxiv_version: 1907.05623v1 · doi: 10.48550/arxiv.1907.05623 · pith_short_12: ZT4X4VCWHP3I · pith_short_16: ZT4X4VCWHP3IFD6P · pith_short_8: ZT4X4VCW

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/ZT4X4VCWHP3IFD6PEZZD2LC2XP \
  | 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: ccf97e54563bf6828fcf26723d2c5abbdb6ed99944084355c1ebddf67080d63f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b37365f75a9a8e80afd1ae48043e3acca7f7edf24815ed19be83a25830e2db8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2019-07-12T08:39:34Z",
    "title_canon_sha256": "b8c2acc08b2f4c33734ace5f9939d05d0ff84db7b99e866d2f88f025c5e1af9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05623",
    "kind": "arxiv",
    "version": 1
  }
}