Pith Number

pith:PDKIXFZD

pith:2019:PDKIXFZDCICET2Q2LOUUYJBS52

not attested not anchored not stored refs pending

Barium & related stars and their white-dwarf companions I. Giant stars

A. Escorza, A. Jorissen, D. Karinkuzhi, H.M.J. Boffin, H. Van Winckel, S. Shetye, S. Van Eck

arxiv:1904.03975 v2 · 2019-04-08 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDKIXFZDCICET2Q2LOUUYJBS52}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

1 paper in Pith

Tracing the s-Process: Spectroscopic Insights into Chemical Abundances in O- and C-rich Evolved Stars

Receipt and verification

First computed	2026-05-17T23:42:20.041168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d48b9723120449ea1a5ba94c2432ee887e43ec2ee1d75859d81acc2172345c

Aliases

arxiv: 1904.03975 · arxiv_version: 1904.03975v2 · doi: 10.48550/arxiv.1904.03975 · pith_short_12: PDKIXFZDCICE · pith_short_16: PDKIXFZDCICET2Q2 · pith_short_8: PDKIXFZD

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/PDKIXFZDCICET2Q2LOUUYJBS52 \
  | 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: 78d48b9723120449ea1a5ba94c2432ee887e43ec2ee1d75859d81acc2172345c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e0ddbebb39a72bcee7b918e242e997bd4e416a71a439911708d911d3f554939",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-08T11:56:57Z",
    "title_canon_sha256": "b6dd7643f3246418dbbc2982f04adcfcbc34000925697fb03a703a1d0dc19b74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03975",
    "kind": "arxiv",
    "version": 2
  }
}