Pith Number

pith:33I2AG7M

pith:2009:33I2AG7MXDVLHQAFGCMZ3SLQI6

not attested not anchored not stored refs pending

Reconstructed and measured total solar irradiance: Is there a secular trend between 1978 and 2003?

N.A. Krivova, S.K. Solanki, T. Wenzler

arxiv:0909.2975 v1 · 2009-09-16 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33I2AG7MXDVLHQAFGCMZ3SLQI6}

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	2026-05-18T02:34:29.887890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ded1a01becb8eab3c00530999dc9704792e9211f7193c71994b7210bd98bae0b

Aliases

arxiv: 0909.2975 · arxiv_version: 0909.2975v1 · doi: 10.48550/arxiv.0909.2975 · pith_short_12: 33I2AG7MXDVL · pith_short_16: 33I2AG7MXDVLHQAF · pith_short_8: 33I2AG7M

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/33I2AG7MXDVLHQAFGCMZ3SLQI6 \
  | 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: ded1a01becb8eab3c00530999dc9704792e9211f7193c71994b7210bd98bae0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67de9f2bbd44366713ca7610ce4a52d4b15b306bc8bb4dc68d71c26d7f1e92f6",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-16T10:40:18Z",
    "title_canon_sha256": "57c057c2d4cbd0131c4395bb1cc1cbb0942dd2bf98f4092f05543abfaeb6a7f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2975",
    "kind": "arxiv",
    "version": 1
  }
}