Pith Number

pith:4RK3EWRN

pith:2022:4RK3EWRN63R3IC6NT55JLSCZ6S

not attested not anchored not stored refs pending

Young, blue, and isolated stellar systems in the Virgo Cluster. I. 2-D Optical spectroscopy

A. Karunakaran, A. Seth, B. Mutlu-Pakdil, D. Crnojevic, D.J. Sand, D. Zaritsky, E.A.K. Adams, E. Toloba, G. Battaglia, G. Beccari, G. Cresci, J. Fuson, J.L. Inoue, J.M. Cannon, J. Strader, K. Spekkens, L. Magrini, M. Bellazzini, M.G. Jones, N. Caldwell, P. Bennet, P. Guhathakurta, R. Munoz

arxiv:2206.13971 v1 · 2022-06-28 · 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{4RK3EWRN63R3IC6NT55JLSCZ6S}

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	2026-07-05T04:50:59.498372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e455b25a2df6e3b40bcd9f7a95c859f4963628ab49abf8f2b835ddb711dbd777

Aliases

arxiv: 2206.13971 · arxiv_version: 2206.13971v1 · doi: 10.48550/arxiv.2206.13971 · pith_short_12: 4RK3EWRN63R3 · pith_short_16: 4RK3EWRN63R3IC6N · pith_short_8: 4RK3EWRN

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/4RK3EWRN63R3IC6NT55JLSCZ6S \
  | 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: e455b25a2df6e3b40bcd9f7a95c859f4963628ab49abf8f2b835ddb711dbd777

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54a9aef155aeb6ccfe4e54cf02f2b016c4b4a0fdb89a32b69713e06c890b7b8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-06-28T12:55:39Z",
    "title_canon_sha256": "679e1664d9580b3bc95cc18c1b0d70d4f32176b2e4890ee79cae98cb08d97844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.13971",
    "kind": "arxiv",
    "version": 1
  }
}