Pith Number

pith:LXNOYYOY

pith:2022:LXNOYYOYZEZFGROXF2QLK7KO3N

not attested not anchored not stored refs pending

Does the Catalog of California Earthquakes, with Aftershocks Included, Contain Information about Future Large Earthquakes?

Andrea Donnellan, Geoffrey Fox, James Crutchfield, John B. Rundle, Lisa Grant Ludwig

arxiv:2208.03839 v2 · 2022-08-07 · 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{LXNOYYOYZEZFGROXF2QLK7KO3N}

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	2026-07-05T04:53:43.649122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ddaec61d8c9325345d72ea0b57d4edb43a1eca723d92a844627c4135d585c6c

Aliases

arxiv: 2208.03839 · arxiv_version: 2208.03839v2 · doi: 10.48550/arxiv.2208.03839 · pith_short_12: LXNOYYOYZEZF · pith_short_16: LXNOYYOYZEZFGROX · pith_short_8: LXNOYYOY

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/LXNOYYOYZEZFGROXF2QLK7KO3N \
  | 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: 5ddaec61d8c9325345d72ea0b57d4edb43a1eca723d92a844627c4135d585c6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "052c80255fc419616e1f1f357faa708616719faef04f6d7a4a66e624208f7a38",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2022-08-07T23:07:19Z",
    "title_canon_sha256": "9f00ae0fa5ef26f4cd064728ecfc8097758cbd8d3cea151a96a2f9f68f648f20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.03839",
    "kind": "arxiv",
    "version": 2
  }
}