Pith Number

pith:LUOBAUDV

pith:2008:LUOBAUDVYI2XHMDF6ZFFXS4C4H

not attested not anchored not stored refs pending

Monitoring the radio spectra of selected blazars in the Fermi-GST era. The Effelsberg 100 m telescope covering the cm band

E. Angelakis, J. A. Zensus, L. Fuhrmann, N. Marchili, T. P. Krichbaum

arxiv:0809.3912 v1 · 2008-09-23 · 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{LUOBAUDVYI2XHMDF6ZFFXS4C4H}

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	2026-07-04T15:14:32.825801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d1c105075c23573b065f64a5bcb82e1c0cbf41f16bd79af6d7e648793787c8f

Aliases

arxiv: 0809.3912 · arxiv_version: 0809.3912v1 · doi: 10.48550/arxiv.0809.3912 · pith_short_12: LUOBAUDVYI2X · pith_short_16: LUOBAUDVYI2XHMDF · pith_short_8: LUOBAUDV

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/LUOBAUDVYI2XHMDF6ZFFXS4C4H \
  | 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: 5d1c105075c23573b065f64a5bcb82e1c0cbf41f16bd79af6d7e648793787c8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "235d90cc6b11db0d35f19cea24c1c15d44b0afd5887a0527ed2c9d8178be33ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-23T13:34:14Z",
    "title_canon_sha256": "7f675052fc2f6b3fcc7ee5c6a20f6cb9dd0935846b2e7dab2eacf06aff3fdf8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3912",
    "kind": "arxiv",
    "version": 1
  }
}