Pith Number

pith:A3PRECCZ

pith:1998:A3PRECCZTG5FSEVYDBP47CCTLD

not attested not anchored not stored refs pending

The Mini AGN at the Center of the Elliptical Galaxy NGC 4552 with HST

Alvio Renzini, David Burstein, Francesco Bertola, Laura Greggio, Lucio M. Buson, Michele Cappellari, Sperello di Serego Alighieri

arxiv:astro-ph/9807063 v2 · 1998-07-07 · 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{A3PRECCZTG5FSEVYDBP47CCTLD}

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	2026-05-18T01:55:24.702029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06df12085999ba5912b8185fcf885358d50e20b67be0fcf4344a6e2d1b3babcc

Aliases

arxiv: astro-ph/9807063 · arxiv_version: astro-ph/9807063v2 · doi: 10.48550/arxiv.astro-ph/9807063 · pith_short_12: A3PRECCZTG5F · pith_short_16: A3PRECCZTG5FSEVY · pith_short_8: A3PRECCZ

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/A3PRECCZTG5FSEVYDBP47CCTLD \
  | 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: 06df12085999ba5912b8185fcf885358d50e20b67be0fcf4344a6e2d1b3babcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cc76dcd070b857ae1108dc58cb4a347a044ac795b48ec79c64bc8db0d958e3a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-07-07T15:03:24Z",
    "title_canon_sha256": "dcc610f89d5eab8ef62e60689cae4c2f9f3d908882b93827984b664df8a0734c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9807063",
    "kind": "arxiv",
    "version": 2
  }
}