Pith Number

pith:GEGTZCS7

pith:2009:GEGTZCS7D23IXTWTVNLGSU7BLE

not attested not anchored not stored refs pending

Design, analysis, and testing of a microdot apodizer for the Apodized Pupil Lyot Coronagraph. II. The dot size impact. (Research Note)

A. Boccaletti, C. Dorrer, K. Dohlen, M. Kasper, P. Martinez

arxiv:0904.2481 v1 · 2009-04-16 · 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{GEGTZCS7D23IXTWTVNLGSU7BLE}

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	2026-05-18T02:13:59.872928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

310d3c8a5f1eb68bced3ab566953e159184c766e50fcf24d1954bb3b61cf78bb

Aliases

arxiv: 0904.2481 · arxiv_version: 0904.2481v1 · doi: 10.48550/arxiv.0904.2481 · pith_short_12: GEGTZCS7D23I · pith_short_16: GEGTZCS7D23IXTWT · pith_short_8: GEGTZCS7

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/GEGTZCS7D23IXTWTVNLGSU7BLE \
  | 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: 310d3c8a5f1eb68bced3ab566953e159184c766e50fcf24d1954bb3b61cf78bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f996a6a77b7114e8c2e6058ea5cda487ecce03caa4ff55c50ada1ecdb61a7df6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-04-16T15:34:14Z",
    "title_canon_sha256": "70a791cdf83118f4615a793691d993969b70dac9c1accb95744c212949794ec6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2481",
    "kind": "arxiv",
    "version": 1
  }
}