Pith Number

pith:YA4TIR6U

pith:2003:YA4TIR6U6DETZHXPTXKC2NBQBO

not attested not anchored not stored refs pending

A multi-wavelength test of the FR~I - BL Lac unifying model

(2) S.I.S.S.A., 4), A. Capetti (1), A. Celotti (2), Baltimore, Bologna, E. Trussoni (1), Italy, Italy), Italy (3) Space Telescope Science Institute, L. Feretti (4) ((1)Istituto Nazionale di Astrofisica (INAF) - Osservatorio Astronomico di Torino, M. Chiaberge (3, Trieste, USA (4) Istituto di Radioastronomia del C.N.R.

arxiv:astro-ph/0304018 v1 · 2003-04-01 · 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{YA4TIR6U6DETZHXPTXKC2NBQBO}

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	2026-07-04T16:36:46.527851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0393447d4f0c93c9eef9dd42d34300bb0f71053cd85fbcefeea770a5b01bea9

Aliases

arxiv: astro-ph/0304018 · arxiv_version: astro-ph/0304018v1 · doi: 10.48550/arxiv.astro-ph/0304018 · pith_short_12: YA4TIR6U6DET · pith_short_16: YA4TIR6U6DETZHXP · pith_short_8: YA4TIR6U

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/YA4TIR6U6DETZHXPTXKC2NBQBO \
  | 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: c0393447d4f0c93c9eef9dd42d34300bb0f71053cd85fbcefeea770a5b01bea9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52e9b7c7e9df0ec1fb1215fe1fbae82a79aebf72bbdcd96f06456ec12ffaafb0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-01T09:38:04Z",
    "title_canon_sha256": "834f57e58e0106a6dfe299a37dbd4302111da7e53db44ae397c26f2b3aa50f06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304018",
    "kind": "arxiv",
    "version": 1
  }
}