Pith Number

pith:57XKOGWA

pith:2016:57XKOGWA7SCAVS5JESCXOXKB5I

not attested not anchored not stored refs pending

Swift coalescence of supermassive black holes in cosmological mergers of massive galaxies

(2) Institute for Computational Science, (3) National Astronomical Observatories, 4, (4) Astronomical Observatory, 5), (5) Astronomisches Rechen-Institut, Andreas Just (5) ((1) Institute of Space Technology, Chinese Academy of Sciences, Davide Fiacconi (2), Fazeel M. Khan (1), Heidelberg University), Islamabad, Lucio Mayer (2), National Academy of Sciences of Ukraine, Peter Berczik (3, University of Zurich

arxiv:1604.00015 v2 · 2016-03-31 · astro-ph.GA · astro-ph.CO · 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{57XKOGWA7SCAVS5JESCXOXKB5I}

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	2026-05-18T01:04:13.461916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efeea71ac0fc840acba92485775d41ea3809d81b0f3c9c1b9d4c928dd37e23b6

Aliases

arxiv: 1604.00015 · arxiv_version: 1604.00015v2 · doi: 10.48550/arxiv.1604.00015 · pith_short_12: 57XKOGWA7SCA · pith_short_16: 57XKOGWA7SCAVS5J · pith_short_8: 57XKOGWA

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/57XKOGWA7SCAVS5JESCXOXKB5I \
  | 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: efeea71ac0fc840acba92485775d41ea3809d81b0f3c9c1b9d4c928dd37e23b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "403b4e9250c4e2b465472320018af558774ed40cdcc06f079383e480df8176fe",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-03-31T20:00:02Z",
    "title_canon_sha256": "0b91ff8010a2a3ee984bce86f09624184374df3309b229825e6f8ed5c1e0f5f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00015",
    "kind": "arxiv",
    "version": 2
  }
}