Pith Number

pith:4EUOIALK

pith:2018:4EUOIALKXYSW4H6LGWQHHOESLG

not attested not anchored not stored refs pending

The R-Process Alliance: 2MASS J09544277+5246414, the Most Actinide-Enhanced R-II Star Known

Anna Frebel, Chao Liu, Charli M. Sakari, Christopher Sneden, Erika M. Holmbeck, Ian U. Roederer, John J. Cowan, Terese T. Hansen, Timothy C. Beers, Vinicius M. Placco, Young Sun Lee

arxiv:1805.11925 v1 · 2018-05-30 · 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{4EUOIALKXYSW4H6LGWQHHOESLG}

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	2026-05-18T00:13:25.224724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e128e4016abe256e1fcb35a073b892599c1f4e1a49efbbf9e1312d04a7356829

Aliases

arxiv: 1805.11925 · arxiv_version: 1805.11925v1 · doi: 10.48550/arxiv.1805.11925 · pith_short_12: 4EUOIALKXYSW · pith_short_16: 4EUOIALKXYSW4H6L · pith_short_8: 4EUOIALK

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/4EUOIALKXYSW4H6LGWQHHOESLG \
  | 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: e128e4016abe256e1fcb35a073b892599c1f4e1a49efbbf9e1312d04a7356829

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7967b8047c80fe7bf6a244a7e5f0dc31f6a5d07b75527b6beb32888c5f821545",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-30T12:58:42Z",
    "title_canon_sha256": "ee192d393cff1e914dfa60a15c6581f944e04f1467a5898a0c7fa47fcad33248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11925",
    "kind": "arxiv",
    "version": 1
  }
}