Pith Number

pith:M3K2XWJK

pith:2025:M3K2XWJKV3ZMEJMMIZNSVCEGR7

not attested not anchored not stored refs pending

A recoiling supermassive black hole in a powerful quasar

Alessandro Capetti, Colin Norman, Davide Gerosa, Eileen T. Meyer, Erini Lambrides, Gianluca Castignani, Grant R. Tremblay, Hidenori Takahashi, Kentaro Motohara, Kosuke Kushibiki, Marco Chiaberge, Masahiro Konishi, Massimo Stiavelli, Matteo Boschini, Shuhei Koyama, Stefano Bianchi, Takahiro Morishita

arxiv:2501.18730 v3 · 2025-01-30 · astro-ph.GA · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3K2XWJKV3ZMEJMMIZNSVCEGR7}

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	2026-06-03T00:05:03.096024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66d5abd92aaef2c2258c465b2a88868fe2496e378d96a4c923357a68df4c6bb2

Aliases

arxiv: 2501.18730 · arxiv_version: 2501.18730v3 · doi: 10.48550/arxiv.2501.18730 · pith_short_12: M3K2XWJKV3ZM · pith_short_16: M3K2XWJKV3ZMEJMM · pith_short_8: M3K2XWJK

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/M3K2XWJKV3ZMEJMMIZNSVCEGR7 \
  | 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: 66d5abd92aaef2c2258c465b2a88868fe2496e378d96a4c923357a68df4c6bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26a28b214473f801965240d702a69d6a076f3aa794fc37020e8a536aff8eff0a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-30T20:16:46Z",
    "title_canon_sha256": "0c5dc3c164f99991a5b01cd4dfed3f234bf6546dda8eaa30e593d7caf979e1fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.18730",
    "kind": "arxiv",
    "version": 3
  }
}