Pith Number

pith:SGK42AST

pith:2019:SGK42ASTJDSMDWFIQJ4LCJAVYX

not attested not anchored not stored refs pending

Ultra-diffuse galaxies in the Auriga simulations

Carlos S. Frenk, Facundo A. Gomez, Federico Marinacci, Liang Gao, Qi Guo, Robert J. J. Grand, Ruediger Pakmor, Shihong Liao, Shi Shao, Volker Springel

arxiv:1904.06356 v2 · 2019-04-12 · 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{SGK42ASTJDSMDWFIQJ4LCJAVYX}

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	2026-07-05T00:19:07.611356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9195cd025348e4c1d8a88278b12415c5f0e778ae54a70f59363facdf7942883d

Aliases

arxiv: 1904.06356 · arxiv_version: 1904.06356v2 · doi: 10.48550/arxiv.1904.06356 · pith_short_12: SGK42ASTJDSM · pith_short_16: SGK42ASTJDSMDWFI · pith_short_8: SGK42AST

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/SGK42ASTJDSMDWFIQJ4LCJAVYX \
  | 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: 9195cd025348e4c1d8a88278b12415c5f0e778ae54a70f59363facdf7942883d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a335be24487934198f2057d7fd762137dace86e621f6d45c7e00883a546cb135",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-12T18:00:04Z",
    "title_canon_sha256": "8d2505b3ddbed7ce63d21f3742f3b35432afde74fc286547c19066e8822ac4cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06356",
    "kind": "arxiv",
    "version": 2
  }
}