Pith Number

pith:ZOTOKD3A

pith:1998:ZOTOKD3AQ7D7SRS4XPNDYNGMOZ

not attested not anchored not stored refs pending

FRII radio galaxies with z<0.3 -- II. Beaming and unification

Cambridge), G. G. Pooley, J. M. Riley (MRAO, M. J. Hardcastle (Bristol), P. Alexander

arxiv:astro-ph/9811203 v1 · 1998-11-12 · 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{ZOTOKD3AQ7D7SRS4XPNDYNGMOZ}

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	2026-07-04T16:07:10.863159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cba6e50f6087c7f9465cbbda3c34cc765bbda9cbea25a7fa539fdbd918a6b26f

Aliases

arxiv: astro-ph/9811203 · arxiv_version: astro-ph/9811203v1 · doi: 10.48550/arxiv.astro-ph/9811203 · pith_short_12: ZOTOKD3AQ7D7 · pith_short_16: ZOTOKD3AQ7D7SRS4 · pith_short_8: ZOTOKD3A

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/ZOTOKD3AQ7D7SRS4XPNDYNGMOZ \
  | 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: cba6e50f6087c7f9465cbbda3c34cc765bbda9cbea25a7fa539fdbd918a6b26f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be48f1f05b110ba7b052fd1c7fc78ed583cc99a417d9a773e36428debdc3f2c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-12T19:15:28Z",
    "title_canon_sha256": "37daf57c9cf72cfa56d850d9c727badd6effeb4eeac2894f9cc6e34f7093b288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811203",
    "kind": "arxiv",
    "version": 1
  }
}