Pith Number

pith:IBKUQMFI

pith:2021:IBKUQMFIWCIGCJTQHJU6TEA3ZP

not attested not anchored not stored refs pending

Stellar Rotation in the K2 Sample: Evidence for Modified Spindown

Daniel Foreman-Mackey, David Kipping, Eric Agol, James R. A. Davenport, Kevin R. Covey, Marcel Ag\"ueros, Ruth Angus, Tyler A. Gordon

arxiv:2101.07886 v2 · 2021-01-19 · 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{IBKUQMFIWCIGCJTQHJU6TEA3ZP}

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.

Cited by

1 paper in Pith

Hints of enhanced magnetic activity after the intermediate rotation period gap as traced by the chromospheric Ca ii infrared triplet

Receipt and verification

First computed	2026-07-05T02:44:53.849207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40554830a8b0906126703a69e9901bcbe59ae806c8130d53b619a5da27afe21f

Aliases

arxiv: 2101.07886 · arxiv_version: 2101.07886v2 · doi: 10.48550/arxiv.2101.07886 · pith_short_12: IBKUQMFIWCIG · pith_short_16: IBKUQMFIWCIGCJTQ · pith_short_8: IBKUQMFI

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/IBKUQMFIWCIGCJTQHJU6TEA3ZP \
  | 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: 40554830a8b0906126703a69e9901bcbe59ae806c8130d53b619a5da27afe21f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c10da099190e3ffb6077de9202c4cbe090a25dc0404a17fc2b59e2dbe9348187",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-01-19T22:38:26Z",
    "title_canon_sha256": "bef54a378a4ec630c78ba6a0795afcfecedcccbd950bd1706e878e0a9bff13a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07886",
    "kind": "arxiv",
    "version": 2
  }
}