Pith Number

pith:2R6CZLAK

pith:2009:2R6CZLAK5TBUY4CICUXELP3FUE

not attested not anchored not stored refs pending

The Metallicity of the HD 98800 System

David R. Soderblom, Jeff A. Valenti, John R. Stauffer, Tanmoy Laskar

arxiv:0905.1907 v1 · 2009-05-12 · 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{2R6CZLAK5TBUY4CICUXELP3FUE}

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	2026-05-18T04:31:20.563529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d47c2cac0aecc34c7048152e45bf65a105c9c1de58ad3ba805a035ac74f021eb

Aliases

arxiv: 0905.1907 · arxiv_version: 0905.1907v1 · doi: 10.48550/arxiv.0905.1907 · pith_short_12: 2R6CZLAK5TBU · pith_short_16: 2R6CZLAK5TBUY4CI · pith_short_8: 2R6CZLAK

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/2R6CZLAK5TBUY4CICUXELP3FUE \
  | 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: d47c2cac0aecc34c7048152e45bf65a105c9c1de58ad3ba805a035ac74f021eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7db8e879b8d134e2381e4651cdd1c3e8d6326b344566457ed7224c46ae5f8fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-12T17:06:11Z",
    "title_canon_sha256": "f77ca3cd5de2de11bcfb2068d9edebcc5af3c3f28c208b2eca3467b2d8c8ef1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1907",
    "kind": "arxiv",
    "version": 1
  }
}