Pith Number

pith:BIRHB4BW

pith:2022:BIRHB4BWQLGE53C5QTJZ6CB2ET

not attested not anchored not stored refs pending

On the inconsistency of [C/Fe] abundances and the fractions of carbon-enhanced metal-poor stars among various stellar surveys

Anke Arentsen, David S. Aguado, Else Starkenburg, Jinmi Yoon, Nicolas F. Martin, Vinicius M. Placco, Young Sun Lee

arxiv:2206.04081 v2 · 2022-06-08 · astro-ph.GA · 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{BIRHB4BWQLGE53C5QTJZ6CB2ET}

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	2026-07-05T04:51:23.347406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a2270f03682cc4eec5d84d39f083a24fb66b32731403fa019ac9a21b8b93a25

Aliases

arxiv: 2206.04081 · arxiv_version: 2206.04081v2 · doi: 10.48550/arxiv.2206.04081 · pith_short_12: BIRHB4BWQLGE · pith_short_16: BIRHB4BWQLGE53C5 · pith_short_8: BIRHB4BW

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/BIRHB4BWQLGE53C5QTJZ6CB2ET \
  | 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: 0a2270f03682cc4eec5d84d39f083a24fb66b32731403fa019ac9a21b8b93a25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5dc2b2cdaf577315b9373739a404b81ffd68a37f705130e08eeeedb5b0e380b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-06-08T18:00:04Z",
    "title_canon_sha256": "932c7624f09dbcc090962184d40d5e021771de9fd8531a18d5c0fe7a998cbcaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.04081",
    "kind": "arxiv",
    "version": 2
  }
}