Pith Number

pith:553BPOJZ

pith:2019:553BPOJZB66D3RNE7MFD7EKFEB

not attested not anchored not stored refs pending

Numerical convergence of hydrodynamical simulations of galaxy formation: the abundance and internal structure of galaxies and their cold dark matter haloes

Aaron D. Ludlow (ICRAR/UWA), Joop Schaye, Matthieu Schaller (Leiden), Richard Bower (ICC/Durham)

arxiv:1908.05019 v3 · 2019-08-14 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{553BPOJZB66D3RNE7MFD7EKFEB}

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	2026-07-05T01:01:00.199184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef7617b9390fbc3dc5a4fb0a3f9145205f6535ddbd381870f6c7f009a62a0829

Aliases

arxiv: 1908.05019 · arxiv_version: 1908.05019v3 · doi: 10.48550/arxiv.1908.05019 · pith_short_12: 553BPOJZB66D · pith_short_16: 553BPOJZB66D3RNE · pith_short_8: 553BPOJZ

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/553BPOJZB66D3RNE7MFD7EKFEB \
  | 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: ef7617b9390fbc3dc5a4fb0a3f9145205f6535ddbd381870f6c7f009a62a0829

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df5544710998956038b91e9ece2e56fff7061ff0054dfb605548a45098241e49",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-14T08:56:33Z",
    "title_canon_sha256": "527e64e87138e1d468d9b3efeeba02eb4afa31a8272036ec4642b1c455db853f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05019",
    "kind": "arxiv",
    "version": 3
  }
}