Pith Number

pith:7LTPJJCO

pith:2024:7LTPJJCOU6U2OPCKJGMKLNEZVW

not attested not anchored not stored refs pending

A calibrated model for N-body dynamical friction acting on supermassive black holes

Anna Genina, Antti Rantala, Volker Springel

arxiv:2405.08870 v2 · 2024-05-14 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LTPJJCOU6U2OPCKJGMKLNEZVW}

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	2026-07-05T09:06:05.505443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fae6f4a44ea7a9a73c4a4998a5b499ad95cb78fc8a5ea4d419b5a69313885aaf

Aliases

arxiv: 2405.08870 · arxiv_version: 2405.08870v2 · doi: 10.48550/arxiv.2405.08870 · pith_short_12: 7LTPJJCOU6U2 · pith_short_16: 7LTPJJCOU6U2OPCK · pith_short_8: 7LTPJJCO

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/7LTPJJCOU6U2OPCKJGMKLNEZVW \
  | 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: fae6f4a44ea7a9a73c4a4998a5b499ad95cb78fc8a5ea4d419b5a69313885aaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf737ad6e8593330252d5abc6869c804c295d7108993b59bc2b55b6d019b684a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-05-14T18:00:02Z",
    "title_canon_sha256": "a091ea4fae0b287bb1a2034ca6bc06e6473e1bf83fa057383e89a8c20c49d164"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.08870",
    "kind": "arxiv",
    "version": 2
  }
}