Pith Number

pith:QGZKILG6

pith:2019:QGZKILG6MXRUCC2CKXS56EVFSG

not attested not anchored not stored refs pending

Discovery of a nitrogen-enhanced mildly metal-poor binary system: Possible evidence for pollution from an extinct AGB Star

Angeles P\'erez-Villegas, Annie C. Robin, Baitian Tang, C\'eline Reyl\'e, Dante Minniti, David M. Nataf, Dominik R. G. Schleicher, Jos\'e G. Fern\'andez-Trincado, Mario Ortigoza-Urdaneta, Mauricio Cabezas, Olga Zamora, Ronald Mennickent, Sarah L. Martell, Szabolcs M\'esz\'aros, Timothy C. Beers, Vinicius M. Placco

arxiv:1902.10635 v2 · 2019-02-27 · 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{QGZKILG6MXRUCC2CKXS56EVFSG}

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	2026-07-05T00:15:35.663686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81b2a42cde65e3410b4255e5df12a5918a375a0117385bf0ddd2ba76325dd498

Aliases

arxiv: 1902.10635 · arxiv_version: 1902.10635v2 · doi: 10.48550/arxiv.1902.10635 · pith_short_12: QGZKILG6MXRU · pith_short_16: QGZKILG6MXRUCC2C · pith_short_8: QGZKILG6

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/QGZKILG6MXRUCC2CKXS56EVFSG \
  | 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: 81b2a42cde65e3410b4255e5df12a5918a375a0117385bf0ddd2ba76325dd498

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcf45c15a4417214b576f190d30a04b3eb4dbeec77ed36d361c903a7423d4989",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-27T16:57:38Z",
    "title_canon_sha256": "1f7ae3b956cd4d51fc8b798df3c1d1d07c7329bbe7fa4e19340a3b48b67b2222"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10635",
    "kind": "arxiv",
    "version": 2
  }
}