Pith Number

pith:PUQSGF6B

pith:2008:PUQSGF6BJRFKMADD7MUDXIBZ3O

not attested not anchored not stored refs pending

The duty cycle of local radio galaxies

Julia M. Riley, Paul Alexander, Stanislav S. Shabala, Summer A. Ash

arxiv:0805.4152 v1 · 2008-05-27 · 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{PUQSGF6BJRFKMADD7MUDXIBZ3O}

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	2026-07-04T17:11:01.089517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d212317c14c4aa60063fb283ba039dbb21b8a36207a62b3c0dae8f467e2e36d

Aliases

arxiv: 0805.4152 · arxiv_version: 0805.4152v1 · doi: 10.48550/arxiv.0805.4152 · pith_short_12: PUQSGF6BJRFK · pith_short_16: PUQSGF6BJRFKMADD · pith_short_8: PUQSGF6B

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/PUQSGF6BJRFKMADD7MUDXIBZ3O \
  | 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: 7d212317c14c4aa60063fb283ba039dbb21b8a36207a62b3c0dae8f467e2e36d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e3f9846fd0b6f386230eecab2a37aef13aec0207d8708365e13a5f0972a3907",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-05-27T10:40:53Z",
    "title_canon_sha256": "213cb90fafbf86c7b2dd1665dc4798d0ff413b5594ab82514c99d60969ec42e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4152",
    "kind": "arxiv",
    "version": 1
  }
}