Pith Number

pith:OYL2WM7J

pith:2010:OYL2WM7JQYOD4GA2TS7RBIXEXC

not attested not anchored not stored refs pending

A Physically-Motivated Photometric Calibration of M Dwarf Metallicity

Gregory Laughlin, Kevin C. Schlaufman

arxiv:1006.2850 v1 · 2010-06-14 · astro-ph.EP · 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{OYL2WM7JQYOD4GA2TS7RBIXEXC}

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	2026-05-18T02:06:53.562001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7617ab33e9861c3e181a9cbf10a2e4b88f1acbae30bfae4834db710d2817621d

Aliases

arxiv: 1006.2850 · arxiv_version: 1006.2850v1 · doi: 10.48550/arxiv.1006.2850 · pith_short_12: OYL2WM7JQYOD · pith_short_16: OYL2WM7JQYOD4GA2 · pith_short_8: OYL2WM7J

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/OYL2WM7JQYOD4GA2TS7RBIXEXC \
  | 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: 7617ab33e9861c3e181a9cbf10a2e4b88f1acbae30bfae4834db710d2817621d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac021d2d58522f0ea31e5bd1be80c6dcac6ec90d8353fc04df1e34295bc6abd7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-06-14T21:31:39Z",
    "title_canon_sha256": "1b3484789674cbfcd712bd9b23c098c268f4cecd2840b172e10dae87d51db64b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2850",
    "kind": "arxiv",
    "version": 1
  }
}