Pith Number

pith:SXZTRPPV

pith:2009:SXZTRPPVEYDQMDO64G5YCMTFC4

not attested not anchored not stored refs pending

High Contrast Imaging and Wavefront Control with a PIAA Coronagraph: Laboratory System Validation

2), (2) University of Arizona, (3) NASA Ames, (4) NASA JPL, (5) University of Victoria), Celia Blain (5), Eugene Pluzhnik (3), Frantz Martinache (1), Julien Totems (1), Olivier Guyon (1, Ruslan Belikov (3) ((1) Subaru Telescope/NAOJ, Shinichiro Tanaka (1), Taro Matsuo (4)

arxiv:0911.1307 v1 · 2009-11-06 · 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{SXZTRPPVEYDQMDO64G5YCMTFC4}

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	2026-05-18T02:10:58.663923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95f338bdf52607060ddee1bb8132651716895906dd1928696cc23824099c2ad1

Aliases

arxiv: 0911.1307 · arxiv_version: 0911.1307v1 · doi: 10.48550/arxiv.0911.1307 · pith_short_12: SXZTRPPVEYDQ · pith_short_16: SXZTRPPVEYDQMDO6 · pith_short_8: SXZTRPPV

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/SXZTRPPVEYDQMDO64G5YCMTFC4 \
  | 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: 95f338bdf52607060ddee1bb8132651716895906dd1928696cc23824099c2ad1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "970cdaef1cb4cba117519c71fab868d71d58ba690d53de38d72461da34f60d0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-11-06T17:26:51Z",
    "title_canon_sha256": "43ae257fe781710ff31579c03908b3d11a6368e92cf386ade417e314e89b28fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1307",
    "kind": "arxiv",
    "version": 1
  }
}