Pith Number

pith:IJDIB4SV

pith:2009:IJDIB4SVJDXDDH5UMVYC2PSLUS

not attested not anchored not stored refs pending

Blue straggler stars in dwarf spheroidal galaxies II: Sculptor and Fornax

B. Moore, E. Ripamonti, E. Tolstoy, G. Battaglia, M. J. Irwin, M. Mapelli, S. Sigurdsson

arxiv:0904.0530 v1 · 2009-04-03 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IJDIB4SVJDXDDH5UMVYC2PSLUS}

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	2026-05-18T02:14:07.748505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

424680f25548ee319fb465702d3e4ba4bfdd501b1dad49ac39378ee5cda985ee

Aliases

arxiv: 0904.0530 · arxiv_version: 0904.0530v1 · doi: 10.48550/arxiv.0904.0530 · pith_short_12: IJDIB4SVJDXD · pith_short_16: IJDIB4SVJDXDDH5U · pith_short_8: IJDIB4SV

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/IJDIB4SVJDXDDH5UMVYC2PSLUS \
  | 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: 424680f25548ee319fb465702d3e4ba4bfdd501b1dad49ac39378ee5cda985ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40c77d89464df22913faf54f52c427d94b7fc654adfb10d863216dd994dadd10",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-03T08:10:57Z",
    "title_canon_sha256": "12c9de9a60663337207ae96cf8ff4bba9a62118723084e475d665d57ac0bcf15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0530",
    "kind": "arxiv",
    "version": 1
  }
}