Pith Number

pith:UOCQ4KYB

pith:2005:UOCQ4KYBXLDVTFSAN4QIICQIP4

not attested not anchored not stored refs pending

Accretion and nuclear activity of quiescent supermassive black holes. I: X-ray study

Alessandro Baldi, Alister W. Graham, Aneta Siemiginowska, Giuseppina Fabbiano, Helmut Jerjen, Martin Elvis, Roberto Soria, Silvia Pellegrini

arxiv:astro-ph/0511293 v1 · 2005-11-10 · 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{UOCQ4KYBXLDVTFSAN4QIICQIP4}

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	2026-07-04T17:15:25.096853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3850e2b01bac75996406f20840a087f3638fac0cb8aa297308746a34b5021ee

Aliases

arxiv: astro-ph/0511293 · arxiv_version: astro-ph/0511293v1 · doi: 10.48550/arxiv.astro-ph/0511293 · pith_short_12: UOCQ4KYBXLDV · pith_short_16: UOCQ4KYBXLDVTFSA · pith_short_8: UOCQ4KYB

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/UOCQ4KYBXLDVTFSAN4QIICQIP4 \
  | 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: a3850e2b01bac75996406f20840a087f3638fac0cb8aa297308746a34b5021ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e065960b5c6623267c76bf9d2d39921b6339c8c24bae8cf81863391683f02fbe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-11-10T03:22:57Z",
    "title_canon_sha256": "1ad9eb29157d12b2c1607877bd07bfa339608b9d24ea0e9dfbb8c9c0a0e1f49d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0511293",
    "kind": "arxiv",
    "version": 1
  }
}