Pith Number

pith:25VSDY7V

pith:2012:25VSDY7VUZHV5OSJMA3J4YWR43

not attested not anchored not stored refs pending

The Chemical Signature of a Relic Star Cluster in the Sextans Dwarf Spheroidal Galaxy - Implications for Near-Field Cosmology

Joe Silk, Joss Bland-Hawthorn, Ken Freeman, Torgny Karlsson

arxiv:1201.5376 v2 · 2012-01-25 · astro-ph.CO · 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{25VSDY7VUZHV5OSJMA3J4YWR43}

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	2026-05-18T01:58:41.947421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d76b21e3f5a64f5eba4960369e62d1e6d94cbdd51910e1aaa629fdfcfceff6ff

Aliases

arxiv: 1201.5376 · arxiv_version: 1201.5376v2 · doi: 10.48550/arxiv.1201.5376 · pith_short_12: 25VSDY7VUZHV · pith_short_16: 25VSDY7VUZHV5OSJ · pith_short_8: 25VSDY7V

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/25VSDY7VUZHV5OSJMA3J4YWR43 \
  | 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: d76b21e3f5a64f5eba4960369e62d1e6d94cbdd51910e1aaa629fdfcfceff6ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0ba194b54fb75809e763b926292bd59b9d9b08d8a7dd3d68337234f9cc6f406",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-25T21:00:02Z",
    "title_canon_sha256": "9cc3a47990ce5aba2f929295609107cf45c9721dfe8de86576540eccba54f0ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5376",
    "kind": "arxiv",
    "version": 2
  }
}