Pith Number

pith:KEG6K67H

pith:2011:KEG6K67HUGQO3DXP7MNCPW4SHC

not attested not anchored not stored refs pending

Blindly Detecting Merging Supermassive Black Holes with Radio Surveys

Alberto Sesana, David L. Kaplan, Marta Volonteri, Richard O'Shaughnessy

arxiv:1105.3653 v1 · 2011-05-18 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KEG6K67HUGQO3DXP7MNCPW4SHC}

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	2026-05-18T02:01:56.528996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

510de57be7a1a0ed8eeffb1a27db9238b4cd4a3052568b803b9251e87a824ca2

Aliases

arxiv: 1105.3653 · arxiv_version: 1105.3653v1 · doi: 10.48550/arxiv.1105.3653 · pith_short_12: KEG6K67HUGQO · pith_short_16: KEG6K67HUGQO3DXP · pith_short_8: KEG6K67H

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/KEG6K67HUGQO3DXP7MNCPW4SHC \
  | 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: 510de57be7a1a0ed8eeffb1a27db9238b4cd4a3052568b803b9251e87a824ca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eafcce6852f29d94d0b4b16efe2e09146e72e7a612c3349d746707c4285f3fc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-05-18T14:45:21Z",
    "title_canon_sha256": "65cd6911dbd8e8ca313f520fc263dd30045f21d28fdafb48337d5b0c6f47b13d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3653",
    "kind": "arxiv",
    "version": 1
  }
}