Pith Number

pith:6YBE3JKD

pith:2014:6YBE3JKD7BEWXWMWLBF4VD3ZSP

not attested not anchored not stored refs pending

The solar diameter series of the CCD Solar Astrolabe of the Observat\'orio Nacional in Rio de Janeiro measured during cycle 23

Alexandre Humberto Andrei, Costantino Sigismondi, Eugenio Reis Neto, Jucira Lousada Penna, Sergio Calderari Boscardin, Victor Amorim D'\'Avila

arxiv:1402.1762 v1 · 2014-02-07 · 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{6YBE3JKD7BEWXWMWLBF4VD3ZSP}

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	2026-05-18T02:59:33.642202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6024da543f8496bd996584bca8f7993cc401df1557271cd2585b57dd3d574f1

Aliases

arxiv: 1402.1762 · arxiv_version: 1402.1762v1 · doi: 10.48550/arxiv.1402.1762 · pith_short_12: 6YBE3JKD7BEW · pith_short_16: 6YBE3JKD7BEWXWMW · pith_short_8: 6YBE3JKD

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/6YBE3JKD7BEWXWMWLBF4VD3ZSP \
  | 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: f6024da543f8496bd996584bca8f7993cc401df1557271cd2585b57dd3d574f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d9bdbf3514da3b5f99b52adf21c857d64ca4eace9ff6b4f3a3cbbdf700e6422",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-02-07T20:22:32Z",
    "title_canon_sha256": "106148e6614b2a7f5aab64aca14c26f20daef28ddaf2b27167dbda07bc7d19c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1762",
    "kind": "arxiv",
    "version": 1
  }
}