Pith Number

pith:QTROWUSF

pith:2001:QTROWUSF2LHIFTRUQVYZVIXGOA

not attested not anchored not stored refs pending

On the Relationship Between Radio Emission and Black Hole Mass in Galactic Nuclei

Luis C. Ho (Carnegie Observatories)

arxiv:astro-ph/0110440 v1 · 2001-10-18 · 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{QTROWUSF2LHIFTRUQVYZVIXGOA}

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	2026-07-04T15:22:56.616963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84e2eb5245d2ce82ce3485719aa2e6703991fa809c4052f43b60f6357fd9c7fd

Aliases

arxiv: astro-ph/0110440 · arxiv_version: astro-ph/0110440v1 · doi: 10.48550/arxiv.astro-ph/0110440 · pith_short_12: QTROWUSF2LHI · pith_short_16: QTROWUSF2LHIFTRU · pith_short_8: QTROWUSF

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/QTROWUSF2LHIFTRUQVYZVIXGOA \
  | 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: 84e2eb5245d2ce82ce3485719aa2e6703991fa809c4052f43b60f6357fd9c7fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a3a4413b4e5f846c0e079689514cd2aa49d10e4c1003b2bd9d9483c4c52a608",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-18T21:49:51Z",
    "title_canon_sha256": "1bffbc2f516b7bd6d427826f89fd0b21bfc0a69ac701b3ce1e5cfd7d62e1976b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110440",
    "kind": "arxiv",
    "version": 1
  }
}