Pith Number

pith:CH34QP3I

pith:2012:CH34QP3IOUXP5R4HORA5GCDLR2

not attested not anchored not stored refs pending

The thick disk rotation-metallicity correlation as a fossil of an "inverse chemical gradient" in the early Galaxy

Alessandro Spagna, Anna Curir, Emanuele Spitoni, Francesca Matteucci, Giuseppe Murante, Mario G. Lattanzi, Paola Re Fiorentin

arxiv:1207.6303 v1 · 2012-07-26 · 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{CH34QP3IOUXP5R4HORA5GCDLR2}

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	2026-05-18T01:56:07.072443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11f7c83f68752efec7877441d3086b8eaef1dcc6ae02a3b39f3e24161bec82d6

Aliases

arxiv: 1207.6303 · arxiv_version: 1207.6303v1 · doi: 10.48550/arxiv.1207.6303 · pith_short_12: CH34QP3IOUXP · pith_short_16: CH34QP3IOUXP5R4H · pith_short_8: CH34QP3I

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/CH34QP3IOUXP5R4HORA5GCDLR2 \
  | 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: 11f7c83f68752efec7877441d3086b8eaef1dcc6ae02a3b39f3e24161bec82d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c34b7cdf4a4d06ede09d8b7ffab43f4ddb8d1819848876dd8f5d62276bc9497",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-07-26T15:47:48Z",
    "title_canon_sha256": "85f54231e28f7d5851e361bd29c22da18d4e7d6b6f04f09ca8d45218c6907512"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6303",
    "kind": "arxiv",
    "version": 1
  }
}