Pith Number

pith:SNITXZXI

pith:2025:SNITXZXIFD3JW6AT2Y4QIUGAIQ

not attested not anchored not stored refs pending

Technical description and performance of the phase II version of the Keck Planet Imager and Characterizer

Andrew Skemer, Aniket Sanghi, Ashley Baker, Benjamin Calvin, Ben Sappey, Bertrand Mennesson, Boqiang Shen, Charlotte Guthery, Charlotte Z. Bond, Chas Beichman, Chih-Chun Hsud, Daniel Echeverri, Dimitri Mawet, Eduardo Marin, Edward Wetherell, Emily C. Martin, Eugene Serabyn, Evan Morris, Garreth Ruane, Greg Doppmann, Jacklyn Pezzato, Jacques-Robert Delorme, Jason Fucik, Jason J. Wang, Jean-Baptiste Ruffio, Jerry Xuan, Jinhao Ge, Ji Wang, J. Kent Wallacee, Joshua Liberman, Katelyn Horstman, Luke Finnerty, Maissa Salama, Maodong Gao, Michael P. Fitzgerald, Michael Porter, Mitsuko Roberts, Nemanja Jovanovic, Peter Wizinowich, Randall Bartos, Rebecca Jensen-Clem, Reston Nash, Ronald Lopez, Scott Lilley, Stephanie Leifer, Sylvain Cetre, Tobias Schofield, Vincent Chambouleyron, Yinzi Xin

arxiv:2502.01863 v1 · 2025-02-03 · astro-ph.IM · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SNITXZXIFD3JW6AT2Y4QIUGAIQ}

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	2026-07-05T10:21:28.888989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93513be6e828f69b7813d6390450c04421b04ffb8ed1c85d298760119b742505

Aliases

arxiv: 2502.01863 · arxiv_version: 2502.01863v1 · doi: 10.48550/arxiv.2502.01863 · pith_short_12: SNITXZXIFD3J · pith_short_16: SNITXZXIFD3JW6AT · pith_short_8: SNITXZXI

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/SNITXZXIFD3JW6AT2Y4QIUGAIQ \
  | 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: 93513be6e828f69b7813d6390450c04421b04ffb8ed1c85d298760119b742505

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad7b35b21cf023b432f22f41a943c4d6c041e11c5dd7d51dfa3d5fabd9bcb67e",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-02-03T22:23:19Z",
    "title_canon_sha256": "c5425825073e10edf2a6f50d386ff356945782be2d8fbe0c028440b82b15ee8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.01863",
    "kind": "arxiv",
    "version": 1
  }
}