Pith Number

pith:F5VE4P3Y

pith:2004:F5VE4P3YWP2KYZ4OVEIVQYOT7D

not attested not anchored not stored refs pending

Fast Outflows of Neutral Hydrogen in Radio Galaxies

(2) Kapteyn Inst., (3) Sheffield Univ.), B.H.C. Emonts (2), C.N. Tadhunter (3)((1) ASTRON, Groningen, R. Morganti (1), T.A. Oosterloo (1)

arxiv:astro-ph/0404522 v1 · 2004-04-27 · 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{F5VE4P3YWP2KYZ4OVEIVQYOT7D}

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	2026-07-04T16:43:39.199834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f6a4e3f78b3f4ac678ea9115861d3f8e860d1aff2db0333cb88ec1e22510ac7

Aliases

arxiv: astro-ph/0404522 · arxiv_version: astro-ph/0404522v1 · doi: 10.48550/arxiv.astro-ph/0404522 · pith_short_12: F5VE4P3YWP2K · pith_short_16: F5VE4P3YWP2KYZ4O · pith_short_8: F5VE4P3Y

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/F5VE4P3YWP2KYZ4OVEIVQYOT7D \
  | 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: 2f6a4e3f78b3f4ac678ea9115861d3f8e860d1aff2db0333cb88ec1e22510ac7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ae291caa7cf9c545e4287222cf9b8affecd675082ce499fe3aab64d669b002e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-27T07:39:49Z",
    "title_canon_sha256": "184bddf9fa52fafa539568c044ba5f0f8c8f776a0b6a27991b482e054e1fd894"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404522",
    "kind": "arxiv",
    "version": 1
  }
}