Pith Number

pith:T7XFVHZJ

pith:2000:T7XFVHZJSHGNHFCOOWWXRAIHVA

not attested not anchored not stored refs pending

Long-term Variability Properties and Periodicity Analysis for Blazars

Cas-Pku.Bac), Gnu, J.H. Fan (CfA

arxiv:astro-ph/0001029 v1 · 2000-01-04 · 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{T7XFVHZJSHGNHFCOOWWXRAIHVA}

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	2026-05-18T01:21:57.239553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fee5a9f2991ccd3944e75ad788107a828c30e1f91fe52ec103ae859c87e370e

Aliases

arxiv: astro-ph/0001029 · arxiv_version: astro-ph/0001029v1 · doi: 10.48550/arxiv.astro-ph/0001029 · pith_short_12: T7XFVHZJSHGN · pith_short_16: T7XFVHZJSHGNHFCO · pith_short_8: T7XFVHZJ

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/T7XFVHZJSHGNHFCOOWWXRAIHVA \
  | 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: 9fee5a9f2991ccd3944e75ad788107a828c30e1f91fe52ec103ae859c87e370e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a3ef9658b0972ce99110120864ba533b227117b9c4ee313032fee3122c6a595",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-01-04T08:29:59Z",
    "title_canon_sha256": "3ef68e044571d620eb5925271e80cd657e1195e7691249371bda324c7426d54b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0001029",
    "kind": "arxiv",
    "version": 1
  }
}