Pith Number

pith:5CDUOXV3

pith:2004:5CDUOXV3TBSMS6JC5ZOP3WHYLR

not attested not anchored not stored refs pending

Evolution of the Solar Activity over Time and Effects on Planetary Atmospheres: I. High-energy Irradiances (1-1700 A)

(2) Villanova U., (3), (4) Columbia U., E. F. Guinan (2), I. Ribas (1), M. Audard (4) ((1) IEEC/CSIC, M. Guedel (3), PSI, Spain, Switzerland, USA, USA)

arxiv:astro-ph/0412253 v1 · 2004-12-10 · astro-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{5CDUOXV3TBSMS6JC5ZOP3WHYLR}

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.

Cited by

2 papers in Pith

Kepler Image-Subtracted Light Curves and Variable Star Catalog of NGC 6819

Receipt and verification

First computed	2026-07-04T16:45:23.526763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e887475ebb9864c97922ee5cfdd8f85c6897cd923fb4eb12689b0eba6798d2bf

Aliases

arxiv: astro-ph/0412253 · arxiv_version: astro-ph/0412253v1 · doi: 10.48550/arxiv.astro-ph/0412253 · pith_short_12: 5CDUOXV3TBSM · pith_short_16: 5CDUOXV3TBSMS6JC · pith_short_8: 5CDUOXV3

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/5CDUOXV3TBSMS6JC5ZOP3WHYLR \
  | 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: e887475ebb9864c97922ee5cfdd8f85c6897cd923fb4eb12689b0eba6798d2bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f35f6e2a0803cf27e0bcb7d6870fb0bf016011b6fe2accb112fb26b40c9ba0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-10T10:56:35Z",
    "title_canon_sha256": "30474a2f657904fc64a2ea866206da0a9fa6cefb83b0e2a836741b8c04101c9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412253",
    "kind": "arxiv",
    "version": 1
  }
}