Pith Number

pith:6RID4DPE

pith:2002:6RID4DPEMW2AQKYWJFIFAJV37S

not attested not anchored not stored refs pending

The origin of the UV excess in powerful radio galaxies: spectroscopy and polarimetry of a complete sample of intermediate redshift radio galaxies

C. Tadhunter, K. Wills, M. Hughes, M. Villar-Martin, R. Dickson, R. Morganti, T.G. Robinson

arxiv:astro-ph/0201391 v1 · 2002-01-23 · 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{6RID4DPEMW2AQKYWJFIFAJV37S}

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	2026-07-04T16:29:18.421337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4503e0de465b4082b1649505026bbfc8e84fd6c3c35d3591f9cd08abc4e6ddf

Aliases

arxiv: astro-ph/0201391 · arxiv_version: astro-ph/0201391v1 · doi: 10.48550/arxiv.astro-ph/0201391 · pith_short_12: 6RID4DPEMW2A · pith_short_16: 6RID4DPEMW2AQKYW · pith_short_8: 6RID4DPE

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/6RID4DPEMW2AQKYWJFIFAJV37S \
  | 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: f4503e0de465b4082b1649505026bbfc8e84fd6c3c35d3591f9cd08abc4e6ddf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6861adff4fc3ca6a629d6d4155a180200169eadd40c4debbe4d009679fdf557e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-01-23T17:01:19Z",
    "title_canon_sha256": "155f7edad6b8713d71f632af0076e3887cdbe307ae254c6c797c7a87dfabf9f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0201391",
    "kind": "arxiv",
    "version": 1
  }
}