Pith Number

pith:IRY3W2NY

pith:2010:IRY3W2NYXT3OGXSC3T57QNNRTA

not attested not anchored not stored refs pending

On the kinematic age of brown dwarfs: Radial velocities and space motions of 43 nearby L dwarfs

Andreas Seifahrt, Ansgar Reiners, Gibor Basri, Khiria A. M. Almaghrbi

arxiv:1001.1780 v1 · 2010-01-12 · 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{IRY3W2NYXT3OGXSC3T57QNNRTA}

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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	2026-05-18T04:42:02.628190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4471bb69b8bcf6e35e42dcfbf835b1982cb219f26ff0858f711894905e00c2f1

Aliases

arxiv: 1001.1780 · arxiv_version: 1001.1780v1 · doi: 10.48550/arxiv.1001.1780 · pith_short_12: IRY3W2NYXT3O · pith_short_16: IRY3W2NYXT3OGXSC · pith_short_8: IRY3W2NY

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/IRY3W2NYXT3OGXSC3T57QNNRTA \
  | 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: 4471bb69b8bcf6e35e42dcfbf835b1982cb219f26ff0858f711894905e00c2f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb0220265e6241c27b3a04df5eb8117766520af67b51319d9312b68b6c0c10ab",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-12T02:45:51Z",
    "title_canon_sha256": "ac310b2524ed9f5596952920456480936ce1c749d1b50d41fd52d77ae0023d74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.1780",
    "kind": "arxiv",
    "version": 1
  }
}