Pith Number

pith:JOLNIU4A

pith:2009:JOLNIU4AYTYXLZFQYBMPZTQRRK

not attested not anchored not stored refs pending

The Contribution of Active Galactic Nuclei to the Microjansky Radio Population

D.R. Ballantyne (Center for Relativistic Astrophysics, Georgia Tech, USA)

arxiv:0904.0996 v1 · 2009-04-06 · astro-ph.CO · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JOLNIU4AYTYXLZFQYBMPZTQRRK}

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	2026-05-18T04:29:43.746929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b96d45380c4f175e4b0c058fcce118a8a1f34d301208cf62cd81c7e0b532bf4

Aliases

arxiv: 0904.0996 · arxiv_version: 0904.0996v1 · doi: 10.48550/arxiv.0904.0996 · pith_short_12: JOLNIU4AYTYX · pith_short_16: JOLNIU4AYTYXLZFQ · pith_short_8: JOLNIU4A

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/JOLNIU4AYTYXLZFQYBMPZTQRRK \
  | 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: 4b96d45380c4f175e4b0c058fcce118a8a1f34d301208cf62cd81c7e0b532bf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "842347c094bbab4f1dbe90376d30d45a1fead08270279404d96204519b4a053b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-06T20:00:02Z",
    "title_canon_sha256": "a92ab93687e6bc36876d47e53afb372da2ae319c6229164184a1ad1b65320450"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0996",
    "kind": "arxiv",
    "version": 1
  }
}