Pith Number

pith:IQKZQ7FH

pith:2012:IQKZQ7FH25XCG3MCEQWXDUVIY3

not attested not anchored not stored refs pending

Measuring the solar atmosphere

Jaime de la Cruz Rodr\'iguez

arxiv:1204.4448 v1 · 2012-04-19 · 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{IQKZQ7FH25XCG3MCEQWXDUVIY3}

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	2026-05-18T03:57:27.300309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4415987ca7d76e236d82242d71d2a8c6c0827958093dff82f80e7b4419d00e8a

Aliases

arxiv: 1204.4448 · arxiv_version: 1204.4448v1 · doi: 10.48550/arxiv.1204.4448 · pith_short_12: IQKZQ7FH25XC · pith_short_16: IQKZQ7FH25XCG3MC · pith_short_8: IQKZQ7FH

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/IQKZQ7FH25XCG3MCEQWXDUVIY3 \
  | 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: 4415987ca7d76e236d82242d71d2a8c6c0827958093dff82f80e7b4419d00e8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19302a291738b9ef9b86c68b1a441f74850125cb8d46badf41ff4203ab1a597f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-19T07:10:55Z",
    "title_canon_sha256": "28a17fe0c50aec806f0f029c21443d18be2787a52dffbc0d88f17af490e1886d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4448",
    "kind": "arxiv",
    "version": 1
  }
}