Pith Number

pith:SDFNVUKF

pith:2009:SDFNVUKF5GTTWSPXQFT3WRJT4U

not attested not anchored not stored refs pending

Star Formation History and Chemical Evolution of the Sextans Dwarf Spheroidal Galaxy

Dennis Zaritsky, Hong Soo Park, In-Soo Yuk, Jason Harris, Myung Gyoon Lee

arxiv:0907.5102 v1 · 2009-07-29 · 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{SDFNVUKF5GTTWSPXQFT3WRJT4U}

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	2026-05-18T02:12:46.615165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90cadad145e9a73b49f78167bb4533e533e5e35ac8f109f6f22a2e1512856609

Aliases

arxiv: 0907.5102 · arxiv_version: 0907.5102v1 · doi: 10.48550/arxiv.0907.5102 · pith_short_12: SDFNVUKF5GTT · pith_short_16: SDFNVUKF5GTTWSPX · pith_short_8: SDFNVUKF

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/SDFNVUKF5GTTWSPXQFT3WRJT4U \
  | 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: 90cadad145e9a73b49f78167bb4533e533e5e35ac8f109f6f22a2e1512856609

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3148610190d0baec57b995d4a34bf93b9d316263bc55493998a03a44fca98e70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-29T10:56:01Z",
    "title_canon_sha256": "f888881dcfa79089f43da6bbd158f4201663ea30746758b3cecd5f819f932580"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.5102",
    "kind": "arxiv",
    "version": 1
  }
}