Pith Number

pith:D6H4DPYR

pith:2025:D6H4DPYRR3F3KHBBCSEFKXACKO

not attested not anchored not stored refs pending

The most metal poor stars

(2) LIRA - Observatoire de Paris - Universit\'e PSL - CNRS - Paris site, 3), (3) UPJV, E. Caffau (1), M. Spite (1) ((1) LIRA - Observatoire de Paris - Universit\'e PSL - CNRS - Meudon site, P. Bonifacio (1), P. Fran\c{c}ois (2, Universit\'e de Picardie Jules Verne)

arxiv:2504.06335 v2 · 2025-04-08 · 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{D6H4DPYRR3F3KHBBCSEFKXACKO}

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

TOPoS VII. Age-metallicity relation in the Galactic halo and assembly of the Milky Way

Receipt and verification

First computed	2026-07-05T11:11:43.863508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f8fc1bf118ecbb51c211488555c0253bfc15a186980a260dd300cd37994c2fb

Aliases

arxiv: 2504.06335 · arxiv_version: 2504.06335v2 · doi: 10.48550/arxiv.2504.06335 · pith_short_12: D6H4DPYRR3F3 · pith_short_16: D6H4DPYRR3F3KHBB · pith_short_8: D6H4DPYR

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/D6H4DPYRR3F3KHBBCSEFKXACKO \
  | 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: 1f8fc1bf118ecbb51c211488555c0253bfc15a186980a260dd300cd37994c2fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d494cb99664859aa3fa0b83bedd46c9cc847b73d4750ecddade7e7a6fc848a7b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-08T18:00:00Z",
    "title_canon_sha256": "a5571b65e0b4dfbdd94a954db8bbd12096986f398b303ed40255557798ed40be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.06335",
    "kind": "arxiv",
    "version": 2
  }
}