Pith Number

pith:SYDWC4CH

pith:2001:SYDWC4CHVGYFC7O6FNIMA4AAKQ

not attested not anchored not stored refs pending

Unveiling the AGN powering the "Composite" Seyfert/Star-forming galaxy NGC 7679: BeppoSAX and ASCA results

A. Wolter, G.G.C. Palumbo, G. Trinchieri, L. Bassani, M. Cappi, R. Della Ceca, S. Pellegrini, V. Beckmann

arxiv:astro-ph/0106444 v1 · 2001-06-25 · 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{SYDWC4CHVGYFC7O6FNIMA4AAKQ}

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	2026-07-04T16:23:35.498519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9607617047a9b0517dde2b50c07000540724b01d6027949c834df4729d2742fc

Aliases

arxiv: astro-ph/0106444 · arxiv_version: astro-ph/0106444v1 · doi: 10.48550/arxiv.astro-ph/0106444 · pith_short_12: SYDWC4CHVGYF · pith_short_16: SYDWC4CHVGYFC7O6 · pith_short_8: SYDWC4CH

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/SYDWC4CHVGYFC7O6FNIMA4AAKQ \
  | 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: 9607617047a9b0517dde2b50c07000540724b01d6027949c834df4729d2742fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eea10752ccdcdcbc293d82a3752291db9c690fb386baf0daef0d6d0afbd08e6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-06-25T16:30:08Z",
    "title_canon_sha256": "8df284634705150083befd99c9c62d662dbce9241c8e768e8e40fe0ab95e3967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0106444",
    "kind": "arxiv",
    "version": 1
  }
}