Pith Number

pith:LLJUSKUO

pith:2025:LLJUSKUO7NKHRVN4JM36FTPYF6

not attested not anchored not stored refs pending

Initial Analysis of Ionospheric Electron Density Variations Across Ecuador Using GPS Data

B. A. Ubill\'us, E. D. L\'opez, G. L. Guam\'an

arxiv:2502.05337 v1 · 2025-02-07 · physics.space-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{LLJUSKUO7NKHRVN4JM36FTPYF6}

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	2026-07-05T10:11:36.367257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ad3492a8efb5478d5bc4b37e2cdf82fb33b674d4ece282cb1a92db7bb28e433

Aliases

arxiv: 2502.05337 · arxiv_version: 2502.05337v1 · doi: 10.48550/arxiv.2502.05337 · pith_short_12: LLJUSKUO7NKH · pith_short_16: LLJUSKUO7NKHRVN4 · pith_short_8: LLJUSKUO

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/LLJUSKUO7NKHRVN4JM36FTPYF6 \
  | 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: 5ad3492a8efb5478d5bc4b37e2cdf82fb33b674d4ece282cb1a92db7bb28e433

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da6dcddde4e81cdac426ec4db522bec51ef207c95c215ce690e0fcafa75f1623",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2025-02-07T21:19:09Z",
    "title_canon_sha256": "d75f79f5270506b6124c6bb69665e3601ba3a929e99a7cc21a2a3a46db1a712f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05337",
    "kind": "arxiv",
    "version": 1
  }
}