Pith Number

pith:J52GOQ4E

pith:2025:J52GOQ4EVVVZKQP2NUSTBZ2XUL

not attested not anchored not stored refs pending

An Atlas of Spectroheliograms from 3641 to 6600 \AA

A.G.M. Pietrow, P. V\'aradi Nagy

arxiv:2507.13025 v1 · 2025-07-17 · 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{J52GOQ4EVVVZKQP2NUSTBZ2XUL}

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	2026-07-05T11:38:53.262683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f74674384ad6b9541fa6d2530e757a2eddaa7ed8b717c1d8ef47f2266faad89

Aliases

arxiv: 2507.13025 · arxiv_version: 2507.13025v1 · doi: 10.48550/arxiv.2507.13025 · pith_short_12: J52GOQ4EVVVZ · pith_short_16: J52GOQ4EVVVZKQP2 · pith_short_8: J52GOQ4E

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/J52GOQ4EVVVZKQP2NUSTBZ2XUL \
  | 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: 4f74674384ad6b9541fa6d2530e757a2eddaa7ed8b717c1d8ef47f2266faad89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcbfffcc56b0a5ec1f6fe693d641873045690975d10b9f035dbce7c143763af2",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-07-17T11:52:50Z",
    "title_canon_sha256": "49c9fa02a6bceafead6422c4d63324ea280a7a192545278a3b62a9d26b6fa85e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.13025",
    "kind": "arxiv",
    "version": 1
  }
}