Pith Number

pith:PIRH76CJ

pith:2007:PIRH76CJM3AI3OYT6ILNXM6CED

not attested not anchored not stored refs pending

The role of neutral hydrogen in radio galaxies

2), 3), 3) ((1) Columbia Univ., B.H.C. Emonts (1, Dwingeloo, Groningen, New York, NL), NL (3) ASTRON, R. Morganti (2, T.A. Oosterloo (2, USA (2) Kapteyn Astronomical Inst.

arxiv:astro-ph/0701435 v1 · 2007-01-16 · 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{PIRH76CJM3AI3OYT6ILNXM6CED}

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	2026-07-04T15:16:31.031863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a227ff84966c08dbb13f216dbb3c220f102c1abe224931e6d6d34e2a29c4096

Aliases

arxiv: astro-ph/0701435 · arxiv_version: astro-ph/0701435v1 · doi: 10.48550/arxiv.astro-ph/0701435 · pith_short_12: PIRH76CJM3AI · pith_short_16: PIRH76CJM3AI3OYT · pith_short_8: PIRH76CJ

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/PIRH76CJM3AI3OYT6ILNXM6CED \
  | 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: 7a227ff84966c08dbb13f216dbb3c220f102c1abe224931e6d6d34e2a29c4096

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "334f719c86ae012c2aecc08ac84a7ee338880b1cdac810c1813d595ba3920c85",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-16T17:59:01Z",
    "title_canon_sha256": "d7d8cea24e6043ed7d683a3093b25793aa8f50eaef86a9eb02ea6d208dc9c0af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701435",
    "kind": "arxiv",
    "version": 1
  }
}