Pith Number

pith:BD4HAKKR

pith:2025:BD4HAKKREH4V2FJYPKIJ6K6INA

not attested not anchored not stored refs pending

Exploring giant barium stars: $^{12}\rm{C}/^{13}\rm{C}$ ratio and elemental abundances of carbon, nitrogen, and oxygen

B. Cseh, C. B. Pereira, M. Lugaro, M. P. Roriz, N. A. Drake, N. Holanda, S. Junqueira

arxiv:2509.02441 v1 · 2025-09-02 · 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{BD4HAKKREH4V2FJYPKIJ6K6INA}

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	2026-07-05T12:03:38.666873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f870295121f95d15387a909f2bc8683cab73d1971671e0ce14d4660d609c27

Aliases

arxiv: 2509.02441 · arxiv_version: 2509.02441v1 · doi: 10.48550/arxiv.2509.02441 · pith_short_12: BD4HAKKREH4V · pith_short_16: BD4HAKKREH4V2FJY · pith_short_8: BD4HAKKR

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/BD4HAKKREH4V2FJYPKIJ6K6INA \
  | 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: 08f870295121f95d15387a909f2bc8683cab73d1971671e0ce14d4660d609c27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9db48be607b1477e998b4192723418dbbb94906a1ca9236d9c825366c9260e7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-09-02T15:44:48Z",
    "title_canon_sha256": "547dd58af481d13e8b642712ecd944778fde163e8a54229e688b6993b3748361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.02441",
    "kind": "arxiv",
    "version": 1
  }
}