Pith Number

pith:OWL4HY3K

pith:2024:OWL4HY3KKTWQTUPVC2WHJCN2GB

not attested not anchored not stored refs pending

Vortex Fiber Nulling for Exoplanet Observations: First Direct Detection of M Dwarf Companions around HIP 21543, HIP 94666, and HIP 50319

Andrew J. Skemer, Ashley Baker, Benjamin Calvin, Ben Sappey, Bertrand Mennesson, Chih-Chun Hsu, Cyprien Lanthermann, Daniel Echeverri, Dimitri Mawet, Eugene Serabyn, Evan Morris, Gail H. Schaefer, Garreth Ruane, Greg Doppmann, Jacklyn Pezzato, Jacques-Robert Delorme, Jason J. Wang, Jean-Baptiste Ruffio, Jerry W. Xuan, Ji Wang, J. Kent Wallace, John D. Monnier, Joshua Liberman, Katelyn Horstman, Luke Finnerty, Maxwell Millar-Blanchaer, Michael P. Fitzgerald, Narsireddy Anugu, Nemanja Jovanovic, Noura Ibrahim, Randall Bartos, Ronald Lopez, Sofia Hillman, Sorabh Chhabra, Stefan Kraus, Sylvain Cetre, Tobias Schofield, Yinzi Xin

arxiv:2403.17295 v1 · 2024-03-26 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWL4HY3KKTWQTUPVC2WHJCN2GB}

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	2026-07-05T08:00:48.068189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7597c3e36a54ed09d1f516ac7489ba305c992fd474e2fd4914fb6c25390b08fd

Aliases

arxiv: 2403.17295 · arxiv_version: 2403.17295v1 · doi: 10.48550/arxiv.2403.17295 · pith_short_12: OWL4HY3KKTWQ · pith_short_16: OWL4HY3KKTWQTUPV · pith_short_8: OWL4HY3K

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/OWL4HY3KKTWQTUPVC2WHJCN2GB \
  | 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: 7597c3e36a54ed09d1f516ac7489ba305c992fd474e2fd4914fb6c25390b08fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "377db486c025684f4595d12676d3dc5bebc95b8bb76006bc3b2d0c095800ce58",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2024-03-26T00:46:34Z",
    "title_canon_sha256": "6ad60db8bc01922ede021d3922713a47c78f228c7f82258ed98f1521d4abda75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.17295",
    "kind": "arxiv",
    "version": 1
  }
}