Pith Number

pith:KK4QTHKZ

pith:2000:KK4QTHKZ4AVDMHOSTXOJSB3HHM

not attested not anchored not stored refs pending

Limits on the accretion rates onto massive black holes in nearby galaxies

A.C. Fabian (IoA), C.L. Carilli (NRAO), T. Di Matteo (Harvard)

arxiv:astro-ph/0005516 v1 · 2000-05-25 · 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{KK4QTHKZ4AVDMHOSTXOJSB3HHM}

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	2026-05-18T01:07:46.667934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52b9099d59e02a361dd29ddc9907673b03e273626de5cac9da0fac56d871444f

Aliases

arxiv: astro-ph/0005516 · arxiv_version: astro-ph/0005516v1 · doi: 10.48550/arxiv.astro-ph/0005516 · pith_short_12: KK4QTHKZ4AVD · pith_short_16: KK4QTHKZ4AVDMHOS · pith_short_8: KK4QTHKZ

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/KK4QTHKZ4AVDMHOSTXOJSB3HHM \
  | 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: 52b9099d59e02a361dd29ddc9907673b03e273626de5cac9da0fac56d871444f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b3f17cf70442547e6033c2a32eb46a9cebee692abb88eb1ec89ccf09824803f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-25T14:18:44Z",
    "title_canon_sha256": "0cc5fb49f43d805be54e5ff9ec38ea0c218d054205433cb5d9338ce6248211c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005516",
    "kind": "arxiv",
    "version": 1
  }
}