Pith Number

pith:Y3QPPF7P

pith:2019:Y3QPPF7PONURGE7MDVRA6ALKAA

not attested not anchored not stored refs pending

Ultra-diffuse galaxies without dark matter

Joseph Silk

arxiv:1905.13235 v1 · 2019-05-30 · astro-ph.GA · astro-ph.CO · hep-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{Y3QPPF7PONURGE7MDVRA6ALKAA}

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.

Cited by

2 papers in Pith

Tidal origin of dark-matter free dwarf galaxies in the NGC 1052 group

Advancing the detection of low surface brightness galaxies. I. ATTILA: multi-tAsking deTecTIon tool for Lsb gAlaxies

Receipt and verification

First computed	2026-05-17T23:41:08.113946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6e0f797ef73691313ec1d620f016a003c52432477b5d2f0e1f7d0d347c98ef6

Aliases

arxiv: 1905.13235 · arxiv_version: 1905.13235v1 · doi: 10.48550/arxiv.1905.13235 · pith_short_12: Y3QPPF7PONUR · pith_short_16: Y3QPPF7PONURGE7M · pith_short_8: Y3QPPF7P

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/Y3QPPF7PONURGE7MDVRA6ALKAA \
  | 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: c6e0f797ef73691313ec1d620f016a003c52432477b5d2f0e1f7d0d347c98ef6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d185482220b9dd38ff67a6ba92c75ce59f5566ebe7c45bcf0e2e2decda17bcc1",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-30T18:00:02Z",
    "title_canon_sha256": "7fdb685324573276cd80e40bae8bd5519974cb2844baf710bf4cb5b83fa5ba27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.13235",
    "kind": "arxiv",
    "version": 1
  }
}