Pith Number

pith:SWEZA66S

pith:2019:SWEZA66SQX7P5JO72LL3P7P765

not attested not anchored not stored refs pending

Clues on Arp 142: The Spiral-Elliptical merger

Claudia Mendes de Oliveira, Fernanda Urrutia-Viscarra, Jose A. Hernandez-Jimenez, Marcelo D. Mora, Sergio Torres-Flores, Veronica Firpo

arxiv:1907.02193 v1 · 2019-07-04 · 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{SWEZA66SQX7P5JO72LL3P7P765}

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	2026-05-17T23:40:29.813107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9589907bd285fefea5dfd2d7b7fdfff74af5490130153b1ac233fb640352a87f

Aliases

arxiv: 1907.02193 · arxiv_version: 1907.02193v1 · doi: 10.48550/arxiv.1907.02193 · pith_short_12: SWEZA66SQX7P · pith_short_16: SWEZA66SQX7P5JO7 · pith_short_8: SWEZA66S

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/SWEZA66SQX7P5JO72LL3P7P765 \
  | 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: 9589907bd285fefea5dfd2d7b7fdfff74af5490130153b1ac233fb640352a87f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c90abaa43de95431ad7a2127e7ce5b9e34c610bbd1876c5d711dbc9895c5bdb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-04T02:36:43Z",
    "title_canon_sha256": "b841ef6c867555b925763ec01af3736ae503b2547a4b06d6478d6b8774a5bcef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02193",
    "kind": "arxiv",
    "version": 1
  }
}