Pith Number

pith:NAJDYEPX

pith:2001:NAJDYEPXSYL2DXSFDNHEZESMEO

not attested not anchored not stored refs pending

The HST survey of the B2 sample of radio-galaxies: optical nuclei and the FRI/BL Lac unified scheme

5), A. Capetti (1), A. Celotti (2), H.R. de Ruiter (4, Italy (2)SISSA/ISAS, Italy (3)Space Telescope Science Institute, Italy (5)Istituto di Radioastronomia Bologna, Italy (6)Universita' di Bologna, Italy (7)Netherlands Foundation for Research in Astronomy), M. Chiaberge (3), P. Parma (5) ((1)Osservatorio Astronomico di Torino, R. Fanti (6), R. Morganti (7), Trieste, U.S.A. (4)Osservatorio Astronomico di Bologna

arxiv:astro-ph/0112151 v1 · 2001-12-06 · 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{NAJDYEPXSYL2DXSFDNHEZESMEO}

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	2026-07-04T16:24:43.510543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68123c11f79617a1de451b4e4c924c238c4d85891ea5f2e85d2fa5cfc1104e2e

Aliases

arxiv: astro-ph/0112151 · arxiv_version: astro-ph/0112151v1 · doi: 10.48550/arxiv.astro-ph/0112151 · pith_short_12: NAJDYEPXSYL2 · pith_short_16: NAJDYEPXSYL2DXSF · pith_short_8: NAJDYEPX

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/NAJDYEPXSYL2DXSFDNHEZESMEO \
  | 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: 68123c11f79617a1de451b4e4c924c238c4d85891ea5f2e85d2fa5cfc1104e2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d542feadec66a65c373484b4acfd6ea3887a8cc8a9f9329606da692fccfba31",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-06T16:57:09Z",
    "title_canon_sha256": "3e2a4838946b1248bc6ad205d2d4d2f7a106e61c34e09a9daeec0a1328584e4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112151",
    "kind": "arxiv",
    "version": 1
  }
}