Pith Number

pith:MRYAAPIL

pith:2021:MRYAAPILTOWR4MLAACHJZMMTRA

not attested not anchored not stored refs pending

Gyro-Kinematic Ages for around 30,000 Kepler Stars

Jason L. Curtis, Rocio Kiman, Ruth Angus, Trevor J. David, Yuxi (Lucy) Lu

arxiv:2102.01772 v1 · 2021-02-02 · 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{MRYAAPILTOWR4MLAACHJZMMTRA}

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	2026-07-05T04:07:20.724500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6470003d0b9bad1e3160008e9cb193881a7f5336d616deab04628265c55596fd

Aliases

arxiv: 2102.01772 · arxiv_version: 2102.01772v1 · doi: 10.48550/arxiv.2102.01772 · pith_short_12: MRYAAPILTOWR · pith_short_16: MRYAAPILTOWR4MLA · pith_short_8: MRYAAPIL

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/MRYAAPILTOWR4MLAACHJZMMTRA \
  | 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: 6470003d0b9bad1e3160008e9cb193881a7f5336d616deab04628265c55596fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e9d9562c47a43ee9a4bf653d8c6ddf93a274ab95c14ff21378fb1fe862563f1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-02-02T21:49:48Z",
    "title_canon_sha256": "b352e25671e7ea736e4cbba3f4adaf3fa9e88fd5b609674f8b85d504236edce5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.01772",
    "kind": "arxiv",
    "version": 1
  }
}