Pith Number

pith:R2NE6SGX

pith:2008:R2NE6SGXJEEBQQSGLXG2IEMCZ2

not attested not anchored not stored refs pending

Using Magnetic Activity and Galactic Dynamics to Constrain the Ages of M Dwarfs

Adam J. Burgasser (MIT), Andrew A. West (MIT), John J. Bochanski (MIT), Kevin R. Covey (CfA), Suzanne L. Hawley (U of Washington)

arxiv:0812.1223 v1 · 2008-12-05 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2NE6SGXJEEBQQSGLXG2IEMCZ2}

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	2026-05-18T02:15:11.646836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e9a4f48d749081842465dcda41182ce846e7858dbcaf739ea87b0d80c18543f

Aliases

arxiv: 0812.1223 · arxiv_version: 0812.1223v1 · doi: 10.48550/arxiv.0812.1223 · pith_short_12: R2NE6SGXJEEB · pith_short_16: R2NE6SGXJEEBQQSG · pith_short_8: R2NE6SGX

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/R2NE6SGXJEEBQQSGLXG2IEMCZ2 \
  | 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: 8e9a4f48d749081842465dcda41182ce846e7858dbcaf739ea87b0d80c18543f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f85c5cf577b0b72f666a50ee2de83f041cacd667564f4a8691cbb54ea31c82f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-05T21:00:19Z",
    "title_canon_sha256": "236e8d16135f9d9003c5d851b1a150727a83996021ce22e330ce010b51d1336c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.1223",
    "kind": "arxiv",
    "version": 1
  }
}