Pith Number

pith:COPGINUF

pith:2018:COPGINUFOHC43JXNBOOQQCVPT4

not attested not anchored not stored refs pending

Merger types forming the Virgo cluster in recent gigayears

Jenny G. Sorce, Mark Olchanski

arxiv:1803.02371 v1 · 2018-03-06 · astro-ph.CO · 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{COPGINUFOHC43JXNBOOQQCVPT4}

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	2026-05-18T00:11:37.609126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

139e64368571c5cda6ed0b9d080aaf9f08d6c5b97e0a5a7ef3c97b0bc1adfe94

Aliases

arxiv: 1803.02371 · arxiv_version: 1803.02371v1 · doi: 10.48550/arxiv.1803.02371 · pith_short_12: COPGINUFOHC4 · pith_short_16: COPGINUFOHC43JXN · pith_short_8: COPGINUF

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/COPGINUFOHC43JXNBOOQQCVPT4 \
  | 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: 139e64368571c5cda6ed0b9d080aaf9f08d6c5b97e0a5a7ef3c97b0bc1adfe94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19c28fc1295ee39d075dc8c948ecda8b504b68c69312fa762b89693058862af4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-03-06T19:00:08Z",
    "title_canon_sha256": "9956dd9f4375e041290b34869bb18210050a9275f1abe8962f0d43121785b2b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02371",
    "kind": "arxiv",
    "version": 1
  }
}