Pith Number

pith:PRDQY5AY

pith:2005:PRDQY5AYYP2MHIKNGTBTV2KYRU

not attested not anchored not stored refs pending

Multiband Photometry of the Blazar PKS 0537-441: A Major Active State in December 2004 - March 2005

A. Dolcini, A. Fernandez-Soto, A. Monfardini, A. Treves, E. Meurs, E. Molinari, E. Palazzi, E. Pian, F.M. Zerbi, F. Vitali, G. Chincarini, G. Cutispoto, G. Tosti, J. Danziger, L.A. Antonelli, M. Rodono, M. Stefanon, P. Conconi, P. D'Avanzo, S. Covino, V. Testa

arxiv:astro-ph/0510358 v1 · 2005-10-12 · 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{PRDQY5AYYP2MHIKNGTBTV2KYRU}

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	2026-07-04T16:52:58.106073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c470c7418c3f4c3a14d34c33ae9588d18a52b0496e77c30f6300d0c3357d75e

Aliases

arxiv: astro-ph/0510358 · arxiv_version: astro-ph/0510358v1 · doi: 10.48550/arxiv.astro-ph/0510358 · pith_short_12: PRDQY5AYYP2M · pith_short_16: PRDQY5AYYP2MHIKN · pith_short_8: PRDQY5AY

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/PRDQY5AYYP2MHIKNGTBTV2KYRU \
  | 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: 7c470c7418c3f4c3a14d34c33ae9588d18a52b0496e77c30f6300d0c3357d75e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d83a75e8dc2fd0316336351c2448d4bb764b66e82295b852a33b079a76a5fcb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-10-12T16:03:11Z",
    "title_canon_sha256": "0a537dc1d8f935d9b07278eb6553e308d7dd36eb0a103ed62761b560402a4a73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0510358",
    "kind": "arxiv",
    "version": 1
  }
}