Pith Number

pith:FMHVPXIR

pith:2008:FMHVPXIRT2KSYZY23YTYRDJN2Y

not attested not anchored not stored refs pending

Massive Black Hole Recoil in High Resolution Hosts

Javiera Guedes, Joachim Stadel, J\"urg Diemand, Lucio Mayer, Marcel Zemp, Michael Kuhlen, Piero Madau

arxiv:0812.1216 v2 · 2008-12-05 · 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{FMHVPXIRT2KSYZY23YTYRDJN2Y}

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	2026-07-04T15:33:53.189245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b0f57dd119e952c671ade27888d2dd6209a866ef977fe5743dfb3cb22058d9b

Aliases

arxiv: 0812.1216 · arxiv_version: 0812.1216v2 · doi: 10.48550/arxiv.0812.1216 · pith_short_12: FMHVPXIRT2KS · pith_short_16: FMHVPXIRT2KSYZY2 · pith_short_8: FMHVPXIR

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/FMHVPXIRT2KSYZY23YTYRDJN2Y \
  | 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: 2b0f57dd119e952c671ade27888d2dd6209a866ef977fe5743dfb3cb22058d9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3369cca085e13c4d7f27dfd2043bf1a3fa7029561e93311c9b059fe45cb287e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-05T20:35:50Z",
    "title_canon_sha256": "fbd43369aa89900cecdd057c06200f6a6f53683d4e0e3d6514af15c81b52049a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.1216",
    "kind": "arxiv",
    "version": 2
  }
}