Pith Number

pith:U7LOX3IM

pith:2011:U7LOX3IMH3AIHYJA3NAQI7SU7X

not attested not anchored not stored refs pending

Spatial distribution and evolution of the stellar populations and candidate star clusters in the Blue Compact Dwarf I Zwicky 18

A. Aloisi, A. Saha, F. Annibali, G. Clementini, G. Fiorentino, I. Musella, M. Marconi, M. Tosi, R. Contreras Ramos, R. P. van der Marel

arxiv:1106.5613 v1 · 2011-06-28 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7LOX3IMH3AIHYJA3NAQI7SU7X}

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	2026-05-18T02:01:29.936305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7d6ebed0c3ec083e120db41047e54fdf458fa53a42c1bdeb9595bb79e066ee2

Aliases

arxiv: 1106.5613 · arxiv_version: 1106.5613v1 · doi: 10.48550/arxiv.1106.5613 · pith_short_12: U7LOX3IMH3AI · pith_short_16: U7LOX3IMH3AIHYJA · pith_short_8: U7LOX3IM

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/U7LOX3IMH3AIHYJA3NAQI7SU7X \
  | 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: a7d6ebed0c3ec083e120db41047e54fdf458fa53a42c1bdeb9595bb79e066ee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3779093e8efa987788b1b6d8bbd76f271648fce02551f9d04e39c3e2eac48dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-06-28T10:16:25Z",
    "title_canon_sha256": "91386e10051daeab9b9985a7a7b907b0824247129d0fab0698cd877fd8c4fc6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.5613",
    "kind": "arxiv",
    "version": 1
  }
}