Pith Number

pith:6QNJ3KKR

pith:2015:6QNJ3KKRLSLYJ64RPQ3ZYE2V7Y

not attested not anchored not stored refs pending

Optimized focal and pupil plane masks for vortex coronagraphs on telescopes with obstructed apertures

Brunella Carlomagno, Christian Delacroix, Dimitri Mawet, Elsa huby, Garreth J. Ruane, Grover A. Swartzlander Jr, Olivier Absil, Pierre Piron

arxiv:1509.05794 v1 · 2015-09-18 · 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{6QNJ3KKRLSLYJ64RPQ3ZYE2V7Y}

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.

Cited by

1 paper in Pith

SUPPPPRESS: Prototyping and testing liquid-crystal vector vortex coronagraphs with reduced polarization leakage

Receipt and verification

First computed	2026-05-18T01:32:42.305231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f41a9da9515c9784fb917c379c1355fe0ef383b0f1a65ffe4e6c8e47e4e28f6b

Aliases

arxiv: 1509.05794 · arxiv_version: 1509.05794v1 · doi: 10.48550/arxiv.1509.05794 · pith_short_12: 6QNJ3KKRLSLY · pith_short_16: 6QNJ3KKRLSLYJ64R · pith_short_8: 6QNJ3KKR

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/6QNJ3KKRLSLYJ64RPQ3ZYE2V7Y \
  | 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: f41a9da9515c9784fb917c379c1355fe0ef383b0f1a65ffe4e6c8e47e4e28f6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82f46d999dc539f6b6a9eeb30cca8155653899b5ab969b4dd858c5922b3ea577",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-09-18T20:45:49Z",
    "title_canon_sha256": "e72b84790c7fbbdfd7ee85b54d3555d48d7d737e9f33893050ce46d7fd325d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05794",
    "kind": "arxiv",
    "version": 1
  }
}