Pith Number

pith:6OUDKRQV

pith:2009:6OUDKRQV2U6Y6R7MX5AGXKMQ3H

not attested not anchored not stored refs pending

Phase-Induced Amplitude Apodization on centrally obscured pupils: design and first laboratory demonstration for the Subaru Telescope pupil

Frantz Martinache, Julien Lozi, Olivier Guyon

arxiv:0903.5001 v2 · 2009-03-28 · 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{6OUDKRQV2U6Y6R7MX5AGXKMQ3H}

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	2026-05-18T02:14:18.806245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3a8354615d53d8f47ecbf406ba990d9e10cf7d902349b40ccff7506e9255b1e

Aliases

arxiv: 0903.5001 · arxiv_version: 0903.5001v2 · doi: 10.48550/arxiv.0903.5001 · pith_short_12: 6OUDKRQV2U6Y · pith_short_16: 6OUDKRQV2U6Y6R7M · pith_short_8: 6OUDKRQV

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/6OUDKRQV2U6Y6R7MX5AGXKMQ3H \
  | 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: f3a8354615d53d8f47ecbf406ba990d9e10cf7d902349b40ccff7506e9255b1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b5cc8040794f1ba34c5240511718abf33eb6a0d9ba22997baf496e7fc6806aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-03-28T21:02:06Z",
    "title_canon_sha256": "db07bd02d2d24180c5db2ef58a0bbd1b545faecfaf93625b14d8f1bfb61f25b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.5001",
    "kind": "arxiv",
    "version": 2
  }
}