Pith Number

pith:6CUP5JOJ

pith:2011:6CUP5JOJEO4UMLGJQUQBAJD5KV

not attested not anchored not stored refs pending

Angular Momentum Loss from Cool Stars: An Empirical Expression and Connection to Stellar Activity

Sydney A. Barnes, Yong-Cheol Kim

arxiv:1104.2350 v1 · 2011-04-12 · 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{6CUP5JOJEO4UMLGJQUQBAJD5KV}

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	2026-05-18T02:02:32.467962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0a8fea5c923b9462cc9852010247d5569fbd7b537b36f44b3e00369f08ac0c0

Aliases

arxiv: 1104.2350 · arxiv_version: 1104.2350v1 · doi: 10.48550/arxiv.1104.2350 · pith_short_12: 6CUP5JOJEO4U · pith_short_16: 6CUP5JOJEO4UMLGJ · pith_short_8: 6CUP5JOJ

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/6CUP5JOJEO4UMLGJQUQBAJD5KV \
  | 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: f0a8fea5c923b9462cc9852010247d5569fbd7b537b36f44b3e00369f08ac0c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06789efc48bb4821c4ad4d6b488b5f74f3393373d52e46984a808ea16c92c34c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-12T23:09:30Z",
    "title_canon_sha256": "fb649fa0887bc881fecf62f22c7bc75ee362a0a56551e8820a1402c8c73623ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2350",
    "kind": "arxiv",
    "version": 1
  }
}