Pith Number

pith:HIAAAVHW

pith:2018:HIAAAVHWOUIMWYY5RA7EIDYP4I

not attested not anchored not stored refs pending

K2-231 b: A sub-Neptune exoplanet transiting a solar twin in Ruprecht 147

Aaron C. Rizzuto, Adam L. Kraus, Andrew Vanderburg, Andrew W. Howard, Andrew W. Mann, Benjamin J. Fulton, Christopher E. Henze, Daniel Huber, Guillermo Torres, Howard Isaacson, Jason Lee Curtis, Jason T. Wright

arxiv:1803.07430 v2 · 2018-03-20 · astro-ph.EP · 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{HIAAAVHWOUIMWYY5RA7EIDYP4I}

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	2026-05-18T00:14:21.563854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a000054f67510cb631d883e440f0fe2353da55e71c7bfa8fe0ef5cf99827dee

Aliases

arxiv: 1803.07430 · arxiv_version: 1803.07430v2 · doi: 10.48550/arxiv.1803.07430 · pith_short_12: HIAAAVHWOUIM · pith_short_16: HIAAAVHWOUIMWYY5 · pith_short_8: HIAAAVHW

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/HIAAAVHWOUIMWYY5RA7EIDYP4I \
  | 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: 3a000054f67510cb631d883e440f0fe2353da55e71c7bfa8fe0ef5cf99827dee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8554fcf57a7e5b3fc4f240e51e0ce42c3a9a9d214e1000b0c965e8b5a85c439",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-03-20T13:43:01Z",
    "title_canon_sha256": "df208dd7bb3ecdbfe175a9c3290ac87b18d5c46b2413e69242abb84af5d7e861"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07430",
    "kind": "arxiv",
    "version": 2
  }
}