Pith Number

pith:2QPBXCI3

pith:2011:2QPBXCI3A3O4WL7622AE2NEC3Z

not attested not anchored not stored refs pending

[O/Fe] Estimates for Carbon-Enhanced Metal-Poor Stars from Near-IR Spectroscopy

Bertrand Plez, Catherine R. Kennedy, Falk Herwig, Norbert Christlieb, Silvia Rossi, Thirupathi Sivarani, Timothy C. Beers, Vinicius M. Placco, Young Sun Lee

arxiv:1101.2260 v1 · 2011-01-12 · 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{2QPBXCI3A3O4WL7622AE2NEC3Z}

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	2026-05-18T02:03:42.749618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d41e1b891b06ddcb2ffed6804d3482de4a9d6e9e53bd36ccd51aa93c7b6e7fc9

Aliases

arxiv: 1101.2260 · arxiv_version: 1101.2260v1 · doi: 10.48550/arxiv.1101.2260 · pith_short_12: 2QPBXCI3A3O4 · pith_short_16: 2QPBXCI3A3O4WL76 · pith_short_8: 2QPBXCI3

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/2QPBXCI3A3O4WL7622AE2NEC3Z \
  | 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: d41e1b891b06ddcb2ffed6804d3482de4a9d6e9e53bd36ccd51aa93c7b6e7fc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9135da675a9bdef874500920e0efa5b761c55b28a8ebd6aa2c59dcda34b6c09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-12T03:16:03Z",
    "title_canon_sha256": "70b8731529301fcf676fa9e34c08ae25334df2079f3e4a77eb1ef242cd40c1a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2260",
    "kind": "arxiv",
    "version": 1
  }
}