Pith Number

pith:UXKASIJA

pith:2009:UXKASIJAD7LN7RCRUMV5FMIAG3

not attested not anchored not stored refs pending

Search for blue compact dwarf galaxies during quiescence II: metallicities of gas and stars, ages, and star-formation rates

A.Vazdekis (1) ((1) Instituto de Astrofisica de Canarias, C. Munoz-Tunon (1), J. A. L. Aguerri (1), J. Sanchez Almeida (1), La Laguna, Spain), Tenerife

arxiv:0904.2150 v2 · 2009-04-14 · 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{UXKASIJAD7LN7RCRUMV5FMIAG3}

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	2026-05-18T04:29:43.526558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5d40921201fd6dfc451a32bd2b10036de6a1d27a3536d23f801d743cb9f3e87

Aliases

arxiv: 0904.2150 · arxiv_version: 0904.2150v2 · doi: 10.48550/arxiv.0904.2150 · pith_short_12: UXKASIJAD7LN · pith_short_16: UXKASIJAD7LN7RCR · pith_short_8: UXKASIJA

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/UXKASIJAD7LN7RCRUMV5FMIAG3 \
  | 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: a5d40921201fd6dfc451a32bd2b10036de6a1d27a3536d23f801d743cb9f3e87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33598b0e53f48710cd02bd129d42af80868a831624c45957d1cd7f138dc86bbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-14T16:00:43Z",
    "title_canon_sha256": "805777d20f0c608cd6ef78cc0b7b2ede1da650d70f1021f8f14eca4b8d03e4b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2150",
    "kind": "arxiv",
    "version": 2
  }
}