Pith Number

pith:NHSTIFOS

pith:2018:NHSTIFOSECHZ47C53C6TT52BUZ

not attested not anchored not stored refs pending

A Lonely Giant: The Sparse Satellite Population of M94 Challenges Galaxy Formation

Adam Smercina, Antonela Monachesi, Colin T. Slater, David Nidever, Eric F. Bell, Jeremy Ballin, Paul A. Price, Richard D'Souza

arxiv:1807.03779 v2 · 2018-07-10 · 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{NHSTIFOSECHZ47C53C6TT52BUZ}

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	2026-05-18T00:07:49.140387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69e53415d2208f9e7c5dd8bd39f741a67d78835c29a4561dc1baa0e7da12deab

Aliases

arxiv: 1807.03779 · arxiv_version: 1807.03779v2 · doi: 10.48550/arxiv.1807.03779 · pith_short_12: NHSTIFOSECHZ · pith_short_16: NHSTIFOSECHZ47C5 · pith_short_8: NHSTIFOS

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/NHSTIFOSECHZ47C53C6TT52BUZ \
  | 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: 69e53415d2208f9e7c5dd8bd39f741a67d78835c29a4561dc1baa0e7da12deab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4121850cef294dcd1cee519a252e249a14558a216596fdda7349fff97f4a554",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-10T17:59:58Z",
    "title_canon_sha256": "ae26077b8081347821128950d7cdebae78dd7b9ff46bd9fb7396d283f5beacef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03779",
    "kind": "arxiv",
    "version": 2
  }
}