Pith Number

pith:PPF4IQ57

pith:2010:PPF4IQ574ZSJ2Q6YMEYFFVBMNL

not attested not anchored not stored refs pending

Mn, Cu and Zn abundances in barium stars and their correlations with neutron capture elements

Dinah M. Allen, Gustavo F. Porto de Mello

arxiv:1009.4688 v2 · 2010-09-23 · 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{PPF4IQ574ZSJ2Q6YMEYFFVBMNL}

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	2026-05-18T02:05:18.023212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bcbc443bfe6649d43d8613052d42c6acbbac2f761afb55165dd64a7405c174f

Aliases

arxiv: 1009.4688 · arxiv_version: 1009.4688v2 · doi: 10.48550/arxiv.1009.4688 · pith_short_12: PPF4IQ574ZSJ · pith_short_16: PPF4IQ574ZSJ2Q6Y · pith_short_8: PPF4IQ57

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/PPF4IQ574ZSJ2Q6YMEYFFVBMNL \
  | 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: 7bcbc443bfe6649d43d8613052d42c6acbbac2f761afb55165dd64a7405c174f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed8e4a55d0f123955d0b6f8190194f3245120b2fe24e7529f7340423fb4e194c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-23T19:34:39Z",
    "title_canon_sha256": "102cbb8875778b80d83c31256f584e4b01e314f4694ac0c2dfc713a8e219479f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4688",
    "kind": "arxiv",
    "version": 2
  }
}