Pith Number

pith:RTHN45NN

pith:2009:RTHN45NNGV2TDPJZ4RQHWPIQ5X

not attested not anchored not stored refs pending

A Volume-limited Sample of 63 M7-M9.5 Dwarfs II. Activity, magnetism, and the fade of the rotation-dominated dynamo

Ansgar Reiners, Gibor Basri

arxiv:0912.4259 v1 · 2009-12-21 · 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{RTHN45NNGV2TDPJZ4RQHWPIQ5X}

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	2026-05-18T02:33:55.739868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ccede75ad357531bd39e4607b3d10eddc972ac6e72b712ddd24b1bf6394b15a

Aliases

arxiv: 0912.4259 · arxiv_version: 0912.4259v1 · doi: 10.48550/arxiv.0912.4259 · pith_short_12: RTHN45NNGV2T · pith_short_16: RTHN45NNGV2TDPJZ · pith_short_8: RTHN45NN

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/RTHN45NNGV2TDPJZ4RQHWPIQ5X \
  | 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: 8ccede75ad357531bd39e4607b3d10eddc972ac6e72b712ddd24b1bf6394b15a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eed93b212c8b4eb7cf8339853c86bebefba202192836c473a2cfeb1101678664",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-21T21:11:27Z",
    "title_canon_sha256": "c423f8bc7e42138dc68d5e004caf83e875aa5353a896c90303ae81a1b4461a0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4259",
    "kind": "arxiv",
    "version": 1
  }
}