Pith Number

pith:WTNNG6GC

pith:2000:WTNNG6GCJIRTYELET3SNFQ2ISH

not attested not anchored not stored refs pending

Spectral energy distributions of FRI nuclei and the FRI/BL Lac unifying model

(2) SISSA - Trieste, (3) Istituto di Radioastronomia CNR - Bologna), A. Capetti (1), A. Celotti (2), E. Trussoni (1), L. Feretti (3), M. Chiaberge(2) ((1) Osservatorio Astronomico di Torino

arxiv:astro-ph/0007434 v1 · 2000-07-28 · 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{WTNNG6GCJIRTYELET3SNFQ2ISH}

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	2026-07-04T16:16:57.949276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4dad378c24a233c11649ee4d2c34891e1ff5e907c19996c751cff8ddf990a48

Aliases

arxiv: astro-ph/0007434 · arxiv_version: astro-ph/0007434v1 · doi: 10.48550/arxiv.astro-ph/0007434 · pith_short_12: WTNNG6GCJIRT · pith_short_16: WTNNG6GCJIRTYELE · pith_short_8: WTNNG6GC

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/WTNNG6GCJIRTYELET3SNFQ2ISH \
  | 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: b4dad378c24a233c11649ee4d2c34891e1ff5e907c19996c751cff8ddf990a48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4a56e1220e6a051b8031c813d6ce51b5503f8415889b933047e10dffdb3e134",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-28T10:28:52Z",
    "title_canon_sha256": "7a4463b1c686598de59c55fedd42a9a6907a3b76492cef50170fa5be54d795f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007434",
    "kind": "arxiv",
    "version": 1
  }
}