Pith Number

pith:FVB4N4L6

pith:2020:FVB4N4L6ZXZQ5IJBQE7OSZQGSL

not attested not anchored not stored refs pending

New concepts in vector-Apodizing Phase Plate coronagraphy

David S. Doelman, Frans Snik, Kelsey L. Miller, Steven P. Bos

arxiv:2012.00462 v2 · 2020-12-01 · 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{FVB4N4L6ZXZQ5IJBQE7OSZQGSL}

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	2026-07-05T02:05:10.496480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d43c6f17ecdf30ea121813ee9660692e4fcd6bba523e08441d2797decc70b58

Aliases

arxiv: 2012.00462 · arxiv_version: 2012.00462v2 · doi: 10.48550/arxiv.2012.00462 · pith_short_12: FVB4N4L6ZXZQ · pith_short_16: FVB4N4L6ZXZQ5IJB · pith_short_8: FVB4N4L6

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/FVB4N4L6ZXZQ5IJBQE7OSZQGSL \
  | 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: 2d43c6f17ecdf30ea121813ee9660692e4fcd6bba523e08441d2797decc70b58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c2e92f1959651f578089f99333b591cca8c1e0a43817f271ad4452d708bfe0e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-12-01T13:15:30Z",
    "title_canon_sha256": "38592d554dffb3cd797bc5a53c4d00cf81f72e8b1ab58241ab1c6b092e20de74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00462",
    "kind": "arxiv",
    "version": 2
  }
}