Pith Number

pith:36PFUWTV

pith:1995:36PFUWTV74JF4WNDDYFIXUY3R2

not attested not anchored not stored refs pending

Statistics of optical intraday variability in a complete sample of radio-selected BL Lac objects

Germany), Jochen Heidt, Stefan J. Wagner (Landessternwarte Heidelberg

arxiv:astro-ph/9506032 v1 · 1995-06-06 · 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{36PFUWTV74JF4WNDDYFIXUY3R2}

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	2026-05-18T01:07:41.572711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df9e5a5a75ff125e59a31e0a8bd31b8e8b54f6e9fd5599aed4bb609f4c4ca806

Aliases

arxiv: astro-ph/9506032 · arxiv_version: astro-ph/9506032v1 · doi: 10.48550/arxiv.astro-ph/9506032 · pith_short_12: 36PFUWTV74JF · pith_short_16: 36PFUWTV74JF4WND · pith_short_8: 36PFUWTV

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/36PFUWTV74JF4WNDDYFIXUY3R2 \
  | 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: df9e5a5a75ff125e59a31e0a8bd31b8e8b54f6e9fd5599aed4bb609f4c4ca806

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9608e82442964ce877ddfd2159653afa76137514e8598de490403b6fd19892b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-06-06T07:44:30Z",
    "title_canon_sha256": "87257fc986fa2de23a8753248d57b0d9cbc6e2fe8c4944731fe4528f00394204"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9506032",
    "kind": "arxiv",
    "version": 1
  }
}