Pith Number

pith:F3UHUV2R

pith:2015:F3UHUV2RV7W34ML5LJSOV7FGAF

not attested not anchored not stored refs pending

An inefficient dwarf: Chemical abundances and the evolution of the Ursa Minor dwarf spheroidal galaxy

Andreas Koch, Gabriele Cescutti, Jan Kleyna, Mark I. Wilkinson, Sofia Feltzing, Ugur Ural

arxiv:1502.04133 v1 · 2015-02-13 · 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{F3UHUV2RV7W34ML5LJSOV7FGAF}

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	2026-05-18T01:41:03.226733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ee87a5751afedbe317d5a64eafca601516f0b3cccf66621c41198f830286205

Aliases

arxiv: 1502.04133 · arxiv_version: 1502.04133v1 · doi: 10.48550/arxiv.1502.04133 · pith_short_12: F3UHUV2RV7W3 · pith_short_16: F3UHUV2RV7W34ML5 · pith_short_8: F3UHUV2R

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/F3UHUV2RV7W34ML5LJSOV7FGAF \
  | 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: 2ee87a5751afedbe317d5a64eafca601516f0b3cccf66621c41198f830286205

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f91c7cc00817e187278511a3a1f9874a00dce0db783196bca935304182d3407b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-13T21:18:16Z",
    "title_canon_sha256": "3e646ff1dd66b7ce17d3a884b850ca13bdd9145e9b186c727ce301190bce9001"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04133",
    "kind": "arxiv",
    "version": 1
  }
}