Pith Number

pith:65H6CWLQ

pith:2009:65H6CWLQQBFSSRPMQJTA5J5VD2

not attested not anchored not stored refs pending

Comparative analysis of the impact of geological activity on astronomical sites of the Canary Islands, Hawaii and Chile

A. Eff-Darwich, B. Garcia-Lorenzo, J. A. Rodriguez-Losada, J. de la Nuez, L. E. Hernandez-Gutierrez, M. C. Romero-Ruiz

arxiv:0904.0140 v1 · 2009-04-01 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65H6CWLQQBFSSRPMQJTA5J5VD2}

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	2026-05-18T02:14:08.353640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f74fe15970804b2945ec82660ea7b51e89687387eb60f70033fd56f9a0f8441f

Aliases

arxiv: 0904.0140 · arxiv_version: 0904.0140v1 · doi: 10.48550/arxiv.0904.0140 · pith_short_12: 65H6CWLQQBFS · pith_short_16: 65H6CWLQQBFSSRPM · pith_short_8: 65H6CWLQ

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/65H6CWLQQBFSSRPMQJTA5J5VD2 \
  | 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: f74fe15970804b2945ec82660ea7b51e89687387eb60f70033fd56f9a0f8441f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bd4cdd4587fc42bf1c47cf2199b48608dc707ac1935df3096955da50f7a1124",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-04-01T12:16:28Z",
    "title_canon_sha256": "e5806c37876812103a927c564b2aea56f3cb552f6cf5b14ea08eb2e1d6efe03e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0140",
    "kind": "arxiv",
    "version": 1
  }
}