Pith Number

pith:XEX4AFDI

pith:2018:XEX4AFDI36PDL26X7MQ7XERN7G

not attested not anchored not stored refs pending

Pupil Plane Phase Apodization

Frans Snik, Johanan L. Codona, Matthew A. Kenworthy

arxiv:1807.11242 v1 · 2018-07-30 · 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{XEX4AFDI36PDL26X7MQ7XERN7G}

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	2026-07-05T04:21:42.948839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b92fc01468df9e35ebd7fb21fb922df984b77ef154fbc3f17a67c686c58df7b7

Aliases

arxiv: 1807.11242 · arxiv_version: 1807.11242v1 · doi: 10.48550/arxiv.1807.11242 · pith_short_12: XEX4AFDI36PD · pith_short_16: XEX4AFDI36PDL26X · pith_short_8: XEX4AFDI

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/XEX4AFDI36PDL26X7MQ7XERN7G \
  | 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: b92fc01468df9e35ebd7fb21fb922df984b77ef154fbc3f17a67c686c58df7b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abbbec637eab71703f8aa1b9acb680a4794d53f9cedbd6421aa3e1aafea89267",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-30T09:04:04Z",
    "title_canon_sha256": "4a2dfa22a2bfa24cd83fcdcdcacebba4e4c654d85c4d4a0a557f8d0c1729a110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11242",
    "kind": "arxiv",
    "version": 1
  }
}