Pith Number

pith:GQ4FVPFD

pith:2005:GQ4FVPFDYUXTQC6G7WIZGOIFLC

not attested not anchored not stored refs pending

Hybrid morphology radio sources from FIRST survey

A. J. Kus (1) ((1) Torun Centre for Astronomy, A. Marecki (1), M. Kunert-Bajraszewska (1), M. P. Gawronski (1), N. Copernicus University, Torun)

arxiv:astro-ph/0509497 v3 · 2005-09-16 · 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{GQ4FVPFDYUXTQC6G7WIZGOIFLC}

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.

Cited by

1 paper in Pith

Source Finding and Characterisation for SKAO Science

Receipt and verification

First computed	2026-07-04T17:15:11.036983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34385abca3c52f380bc6fd919339055883c936a3f8aa77bb669f8d99f0df1da2

Aliases

arxiv: astro-ph/0509497 · arxiv_version: astro-ph/0509497v3 · doi: 10.48550/arxiv.astro-ph/0509497 · pith_short_12: GQ4FVPFDYUXT · pith_short_16: GQ4FVPFDYUXTQC6G · pith_short_8: GQ4FVPFD

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/GQ4FVPFDYUXTQC6G7WIZGOIFLC \
  | 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: 34385abca3c52f380bc6fd919339055883c936a3f8aa77bb669f8d99f0df1da2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e9079bfa64da50b241ead26ebdae0da8e7b02b428cc4fb93baa4c3119979e1f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-16T13:49:25Z",
    "title_canon_sha256": "90783040b23275c9cb2d6e6c511499a383bd66c66f19e4916cb60a6170971abf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509497",
    "kind": "arxiv",
    "version": 3
  }
}