Pith Number

pith:74VTRWAO

pith:2000:74VTRWAOUW3LZMBD7ZIIKYYDZM

not attested not anchored not stored refs pending

Gamma-loud quasars: a view with BeppoSAX

A. Celotti, A. Comastri, A. Treves, C.M.Raiteri, E. Pian, F. Haardt, F. Tavecchio, G. Fossati, G. Ghisellini, G. Tagliaferri, L. Chiappetti, L. Maraschi, M. Villata, P. Grandi, R. Sambruna

arxiv:astro-ph/0003019 v1 · 2000-03-02 · 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{74VTRWAOUW3LZMBD7ZIIKYYDZM}

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	2026-07-04T16:16:08.287012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff2b38d80ea5b6bcb023fe50856303cb1d211706d3f247f1a3cbd0566d30766a

Aliases

arxiv: astro-ph/0003019 · arxiv_version: astro-ph/0003019v1 · doi: 10.48550/arxiv.astro-ph/0003019 · pith_short_12: 74VTRWAOUW3L · pith_short_16: 74VTRWAOUW3LZMBD · pith_short_8: 74VTRWAO

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/74VTRWAOUW3LZMBD7ZIIKYYDZM \
  | 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: ff2b38d80ea5b6bcb023fe50856303cb1d211706d3f247f1a3cbd0566d30766a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61951e43dcc227425d5229c7ae520b4fba37eec458608c3cc70959fa2caf7a19",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-03-02T09:00:08Z",
    "title_canon_sha256": "40474670b18fa516b7b6a5737486b6dfb19cedf29cc9a3155d5c4cd012631ae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0003019",
    "kind": "arxiv",
    "version": 1
  }
}