Pith Number

pith:NRIUM7TI

pith:2012:NRIUM7TIVC5JMQ2HYPJMZHRJJN

not attested not anchored not stored refs pending

The cosmic lithium problem: an observer's perspective

CNRS, F. Spite, M. Spite, P. Bonifacio (GEPI - Observatoire de Paris, Univ. Paris Diderot)

arxiv:1208.1190 v2 · 2012-08-06 · astro-ph.CO · 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{NRIUM7TIVC5JMQ2HYPJMZHRJJN}

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.

Cited by

1 paper in Pith

Challenges for $\Lambda$CDM: An update

Receipt and verification

First computed	2026-05-18T03:49:00.540498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c51467e68a8ba964347c3d2cc9e294b7323798f3af9acef1640c3052cee1f61

Aliases

arxiv: 1208.1190 · arxiv_version: 1208.1190v2 · doi: 10.48550/arxiv.1208.1190 · pith_short_12: NRIUM7TIVC5J · pith_short_16: NRIUM7TIVC5JMQ2H · pith_short_8: NRIUM7TI

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/NRIUM7TIVC5JMQ2HYPJMZHRJJN \
  | 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: 6c51467e68a8ba964347c3d2cc9e294b7323798f3af9acef1640c3052cee1f61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e8cebf16085543869cf63c4d24dec37fc49f7b7dd046e55fcf048b7701189fd",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-06T15:26:47Z",
    "title_canon_sha256": "3020d101fb5a8dadcc620482e9aaae80988e22681a8c1a73110cfb0694441f61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1190",
    "kind": "arxiv",
    "version": 2
  }
}