Pith Number

pith:B725BXFS

pith:2009:B725BXFS7UJIKH6TCY2IH4PDPA

not attested not anchored not stored refs pending

Finding the best proxies for the solar UV irradiance

J. Lilensten, M. Kretzschmar, T. Dudok de Wit, T. Woods

arxiv:0905.1811 v1 · 2009-05-12 · physics.space-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B725BXFS7UJIKH6TCY2IH4PDPA}

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	2026-05-18T02:13:45.568104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ff5d0dcb2fd12851fd3163483f1e378102ce737315101ac4c24eb1b68d4f0e5

Aliases

arxiv: 0905.1811 · arxiv_version: 0905.1811v1 · doi: 10.48550/arxiv.0905.1811 · pith_short_12: B725BXFS7UJI · pith_short_16: B725BXFS7UJIKH6T · pith_short_8: B725BXFS

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/B725BXFS7UJIKH6TCY2IH4PDPA \
  | 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: 0ff5d0dcb2fd12851fd3163483f1e378102ce737315101ac4c24eb1b68d4f0e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42fd8305717d27c7dc3f2fe1c85c5c6d146a00fe6de3c6052baccfb9735cd46a",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2009-05-12T10:45:16Z",
    "title_canon_sha256": "2f5c0a0575e8089b683a4d1a46c67e83a855e3fe4fd435b327df83ab98234b19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1811",
    "kind": "arxiv",
    "version": 1
  }
}