Pith Number

pith:UUYR3VK3

pith:2018:UUYR3VK3WEBY4KYLFPC7ELRQWT

not attested not anchored not stored refs pending

Detection of a population of carbon-enhanced metal-poor stars in the Sculptor dwarf spheroidal galaxy

Anirudh Chiti, Anna Frebel, Ian B. Thompson, Jeffrey D. Crane, John I. Bailey III, Joshua D. Simon, Mario Mateo, Matthew Walker, Stephen A. Shectman

arxiv:1803.04538 v2 · 2018-03-12 · 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{UUYR3VK3WEBY4KYLFPC7ELRQWT}

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	2026-05-18T00:17:30.368987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5311dd55bb1038e2b0b2bc5f22e30b4f63b7718191d30d3de150c591bebede3

Aliases

arxiv: 1803.04538 · arxiv_version: 1803.04538v2 · doi: 10.48550/arxiv.1803.04538 · pith_short_12: UUYR3VK3WEBY · pith_short_16: UUYR3VK3WEBY4KYL · pith_short_8: UUYR3VK3

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/UUYR3VK3WEBY4KYLFPC7ELRQWT \
  | 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: a5311dd55bb1038e2b0b2bc5f22e30b4f63b7718191d30d3de150c591bebede3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72331ca77356cda12fd2fb7560066929d150238628bac798fee7114a9aa46b9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-12T21:17:16Z",
    "title_canon_sha256": "7eb623d7aa87516e2f5c92723b37c57a50c5f6d5cb7b92c7129a979c845ddd05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04538",
    "kind": "arxiv",
    "version": 2
  }
}