Pith Number

pith:FW6SJSRN

pith:2019:FW6SJSRNBOIIFLXZII326MF4YX

not attested not anchored not stored refs pending

The R-Process Alliance: Discovery of a low-alpha, r-Process-Enhanced Metal-Poor Star in the Galactic Halo

Amina Helmi, Andrea Kunder, Anna Frebel, Brad K. Gibson, Charli M. Sakari, Christopher Sneden, Cristina Chiappini, Elizabeth M. Farrell, Eva K. Grebel, Fred Watson, Gal Matijevic, George Seabroke, Georges Kordopatis, George Wallerstein, Ian U. Roederer, John J. Cowan, Joss Bland-Hawthorn, Julio Navarro, Kenneth C. Freeman, Kim A. Venn, Matthias Steinmetz, Rana Ezzeddine, Rosemary F.G. Wyse, Terese Hansen, Timothy C. Beers, Vinicius M. Placco, Warren Reid

arxiv:1903.01480 v1 · 2019-03-04 · astro-ph.SR · 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{FW6SJSRNBOIIFLXZII326MF4YX}

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	2026-05-17T23:49:01.709230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dbd24ca2d0b9082aef94237af30bcc5fcb549f78d8849fc184bc2f1c8f80853

Aliases

arxiv: 1903.01480 · arxiv_version: 1903.01480v1 · doi: 10.48550/arxiv.1903.01480 · pith_short_12: FW6SJSRNBOII · pith_short_16: FW6SJSRNBOIIFLXZ · pith_short_8: FW6SJSRN

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/FW6SJSRNBOIIFLXZII326MF4YX \
  | 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: 2dbd24ca2d0b9082aef94237af30bcc5fcb549f78d8849fc184bc2f1c8f80853

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12f9c8b892cc7b7d8a7dc04648611eb7e99187f7b74d009668c0bf28e888a81",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-04T19:00:06Z",
    "title_canon_sha256": "7f444b42753228b65d355a402fe4d659ca09cc8e007c5000e95bd76088a48ca4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01480",
    "kind": "arxiv",
    "version": 1
  }
}