Pith Number

pith:44OLV4M7

pith:2023:44OLV4M7AGB6666F2W4G6GKMIJ

not attested not anchored not stored refs pending

Vortex Fiber Nulling for Exoplanet Observations: Implementation and First Light

Andrew J. Skemer, Ashley Baker, Benjamin Calvin, Ben Sappey, Bertrand Mennesson, Bin B. Ren, Caprice L. Phillips, Chih-Chun Hsu, Connor Vancil, Daniel Echeverri, Dimitri Mawet, Eugene Serabyn, Evan Morris, Garreth Ruane, Greg Doppmann, Jacklyn Pezzato, Jacques-Robert Delorme, Jason Wang, Jean-Baptiste Ruffio, Jerry Xuan, Ji Wang, J. Kent Wallace, Joshua Liberman, Katelyn Horstman, Luke Finnerty, Maxwell Millar-Blanchaer, Michael P. Fitzgerald, Nemanja Jovanovic, Randall Bartos, Ronald Lopez, Sofia Hillman, Sylvain Cetre, Tobias Schofield, Yinzi Xin

arxiv:2309.06514 v1 · 2023-09-12 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44OLV4M7AGB6666F2W4G6GKMIJ}

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	2026-07-05T06:50:18.856670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e71cbaf19f0183ef7bc5d5b86f194c4252df99f3a1d255075dab19fa292284f3

Aliases

arxiv: 2309.06514 · arxiv_version: 2309.06514v1 · doi: 10.48550/arxiv.2309.06514 · pith_short_12: 44OLV4M7AGB6 · pith_short_16: 44OLV4M7AGB6666F · pith_short_8: 44OLV4M7

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/44OLV4M7AGB6666F2W4G6GKMIJ \
  | 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: e71cbaf19f0183ef7bc5d5b86f194c4252df99f3a1d255075dab19fa292284f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41c362d024cd085e5476f89fd287f23a178dbda7c74ef7a7ebfe0eefb337b194",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-09-12T18:43:06Z",
    "title_canon_sha256": "c1270f1b561dbb1f9b99ba3a20e540bc7aff2318cd6de245e464a5dd69c3fd6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.06514",
    "kind": "arxiv",
    "version": 1
  }
}