Pith Number

pith:GMS6YH3Z

pith:2018:GMS6YH3Z3HLNSMX7NKAW565YFH

not attested not anchored not stored refs pending

Estimating stellar ages and metallicities from parallaxes and broadband photometry - successes and shortcomings

Lennart Lindegren, Louise M. Howes, Ross P. Church, Sofia Feltzing, Thomas Bensby

arxiv:1804.08321 v2 · 2018-04-23 · 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{GMS6YH3Z3HLNSMX7NKAW565YFH}

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	2026-05-17T23:55:14.773299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3325ec1f79d9d6d932ff6a816efbb829fec0d45075714dc919182add0d96ec54

Aliases

arxiv: 1804.08321 · arxiv_version: 1804.08321v2 · doi: 10.48550/arxiv.1804.08321 · pith_short_12: GMS6YH3Z3HLN · pith_short_16: GMS6YH3Z3HLNSMX7 · pith_short_8: GMS6YH3Z

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/GMS6YH3Z3HLNSMX7NKAW565YFH \
  | 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: 3325ec1f79d9d6d932ff6a816efbb829fec0d45075714dc919182add0d96ec54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc3e3baccd22263f368a897b4dc06746196e1bdfe02a6ae5b637c82eb6cadb56",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-23T10:22:03Z",
    "title_canon_sha256": "4f849ad0cd5dfcd963a8435fd0345d34526f9343114097c6f5e1b65004efaab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08321",
    "kind": "arxiv",
    "version": 2
  }
}