Pith Number

pith:UMPSYZ25

pith:2024:UMPSYZ25UXND4367J6FDO5JCOQ

not attested not anchored not stored refs pending

Accurate, Precise, and Physically Self-consistent Ages and Metallicities for 400,000 Solar Neighborhood Subgiant Branch Stars

David M. Nataf, Henrique Reggiani, Isabel Hahn, Kevin C. Schlaufman

arxiv:2407.18307 v1 · 2024-07-25 · astro-ph.SR · 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{UMPSYZ25UXND4367J6FDO5JCOQ}

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

Stable but Wrong: An Inference Limit in Galactic Archaeology

Receipt and verification

First computed	2026-07-05T08:48:47.548920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a31f2c675da5da3e6fdf4f8a377522742034a78b2323efe6587fe13dbfd8d49a

Aliases

arxiv: 2407.18307 · arxiv_version: 2407.18307v1 · doi: 10.48550/arxiv.2407.18307 · pith_short_12: UMPSYZ25UXND · pith_short_16: UMPSYZ25UXND4367 · pith_short_8: UMPSYZ25

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/UMPSYZ25UXND4367J6FDO5JCOQ \
  | 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: a31f2c675da5da3e6fdf4f8a377522742034a78b2323efe6587fe13dbfd8d49a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ba2e4bb74c91afc7b596e43561c8a8902a466d5044d7b3e70d7f3586903cbeb",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2024-07-25T18:00:13Z",
    "title_canon_sha256": "9190edc3ee86be3669c2b474e86ad0c09723bb012b40f8ed573312161231d082"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.18307",
    "kind": "arxiv",
    "version": 1
  }
}