Pith Number

pith:XS5H2ZJH

pith:2004:XS5H2ZJHG437PEFHO5RF4JYKIV

not attested not anchored not stored refs pending

3C 345: The Historical Light Curve (1966-1991) from the digitized plates of the Asiago Observatory

A. Omizzolo, C. Barbieri, C. Rossi

arxiv:astro-ph/0401190 v1 · 2004-01-12 · 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{XS5H2ZJHG437PEFHO5RF4JYKIV}

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	2026-05-18T00:37:17.539165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcba7d65273737f790a777625e270a457acd1100f2786ca01cc9c24e8bdd2c11

Aliases

arxiv: astro-ph/0401190 · arxiv_version: astro-ph/0401190v1 · doi: 10.48550/arxiv.astro-ph/0401190 · pith_short_12: XS5H2ZJHG437 · pith_short_16: XS5H2ZJHG437PEFH · pith_short_8: XS5H2ZJH

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/XS5H2ZJHG437PEFHO5RF4JYKIV \
  | 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: bcba7d65273737f790a777625e270a457acd1100f2786ca01cc9c24e8bdd2c11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "710fa90cda8962a6527115efd4ba835a334309d849e04655d091ca43a931fc36",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-12T07:43:30Z",
    "title_canon_sha256": "c7dfc4dad54363efdf3b07d07f06ccf4f732c0d6e473af2f049eb666035c3177"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401190",
    "kind": "arxiv",
    "version": 1
  }
}