Pith Number

pith:4FL4TYTZ

pith:2018:4FL4TYTZZQFOUCZZY3YKFETUIK

not attested not anchored not stored refs pending

The Active Assembly of the Virgo Cluster: Indications for Recent Group Infall From Early-Type Dwarf Galaxies

Christoph Engler, Joachim Janz, John S. Gallagher III, Linda Urich, Rukmani Vijayaraghavan, Thorsten Lisker

arxiv:1808.04751 v1 · 2018-08-14 · 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{4FL4TYTZZQFOUCZZY3YKFETUIK}

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	2026-05-18T00:05:18.980705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e157c9e279cc0aea0b39c6f0a2927442a9e70952e94484a916ef7444830f2e46

Aliases

arxiv: 1808.04751 · arxiv_version: 1808.04751v1 · doi: 10.48550/arxiv.1808.04751 · pith_short_12: 4FL4TYTZZQFO · pith_short_16: 4FL4TYTZZQFOUCZZ · pith_short_8: 4FL4TYTZ

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/4FL4TYTZZQFOUCZZY3YKFETUIK \
  | 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: e157c9e279cc0aea0b39c6f0a2927442a9e70952e94484a916ef7444830f2e46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06fff2b5e0d36a97832d979a66942a645593e1c2d66bcfe92342b115e80efa82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-14T15:27:24Z",
    "title_canon_sha256": "e9466946a989367b96bde315f4bbd1acaa2ddb97c6c9786516a67884936640a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04751",
    "kind": "arxiv",
    "version": 1
  }
}