Pith Number

pith:PERNZEW5

pith:2019:PERNZEW5W4PLMCKSSN2PBD444G

not attested not anchored not stored refs pending

VEGAS: a VST Early-type GAlaxy Survey. IV. NGC 1533, IC 2038 and IC 2039: an interacting triplet in the Dorado group

A. Cattapan, A. Grado, A. Marino, E. Iodice, E. Ryan-Weber, E.V. Held, L. Limatola, M. Capaccioli, M. Spavone, P. Mazzei, P. Schipani, R. Rampazzo, S. Ciroi

arxiv:1903.04466 v1 · 2019-03-11 · 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{PERNZEW5W4PLMCKSSN2PBD444G}

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	2026-05-17T23:49:01.594459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7922dc92ddb71eb609529374f08f9ce19158a58e7cfe4b1e5b2da4807207c766

Aliases

arxiv: 1903.04466 · arxiv_version: 1903.04466v1 · doi: 10.48550/arxiv.1903.04466 · pith_short_12: PERNZEW5W4PL · pith_short_16: PERNZEW5W4PLMCKS · pith_short_8: PERNZEW5

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/PERNZEW5W4PLMCKSSN2PBD444G \
  | 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: 7922dc92ddb71eb609529374f08f9ce19158a58e7cfe4b1e5b2da4807207c766

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af4781f4220d525d3d3b5fd24edab6b0057ba294eeb81e8adda0c0c2f5f6b8d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-11T17:42:31Z",
    "title_canon_sha256": "fcd472dd685033b745409ab6d213ab1edb094e8838ef2885f4b81ed515dca87d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04466",
    "kind": "arxiv",
    "version": 1
  }
}