Pith Number

pith:WVAIF4WY

pith:2019:WVAIF4WYM24LM25YZXS2YQLHCS

not attested not anchored not stored refs pending

Apodized pupil Lyot coronagraphs designs for future segmented space telescopes

Anand Sivaramakrishnan, Christopher C. Stark, Johan Mazoyer, Kathryn St. Laurent, Kevin Fogarty, Laurent Pueyo, Mamadou N'Diaye, Neil T. Zimmerman, Remi Soummer, Robert Vanderbei, Stuart Shaklan

arxiv:1904.11558 v1 · 2019-04-25 · 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{WVAIF4WYM24LM25YZXS2YQLHCS}

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	2026-05-17T23:47:43.392355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54082f2d866b8b66bb8cde5ac416714950b32119e62f5014c583088939dae14

Aliases

arxiv: 1904.11558 · arxiv_version: 1904.11558v1 · doi: 10.48550/arxiv.1904.11558 · pith_short_12: WVAIF4WYM24L · pith_short_16: WVAIF4WYM24LM25Y · pith_short_8: WVAIF4WY

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/WVAIF4WYM24LM25YZXS2YQLHCS \
  | 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: b54082f2d866b8b66bb8cde5ac416714950b32119e62f5014c583088939dae14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "357dbb6a937799bef957a940d317568bed5cd07bef7bf8afa9f36241d41dcb12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-04-25T19:57:15Z",
    "title_canon_sha256": "f6dea65db6142ca5f7ad749056b2a970ad5872f32190de27d5e8ba379b88fa7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11558",
    "kind": "arxiv",
    "version": 1
  }
}