Pith Number

pith:CIPYFRK7

pith:2020:CIPYFRK72M6VBZAKD5Y6WAB6QN

not attested not anchored not stored refs pending

A vignetting advantage for thin-film filter arrays in hyperspectral cameras

Andy Lambrechts, Bert Geelen, Chris Van Hoof, Thomas Goossens

arxiv:2003.11983 v1 · 2020-03-26 · physics.optics · 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{CIPYFRK72M6VBZAKD5Y6WAB6QN}

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	2026-07-05T00:50:49.228378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

121f82c55fd33d50e40a1f71eb003e836dfeaf8773f0311eb27b4e4e165eeb12

Aliases

arxiv: 2003.11983 · arxiv_version: 2003.11983v1 · doi: 10.48550/arxiv.2003.11983 · pith_short_12: CIPYFRK72M6V · pith_short_16: CIPYFRK72M6VBZAK · pith_short_8: CIPYFRK7

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/CIPYFRK72M6VBZAKD5Y6WAB6QN \
  | 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: 121f82c55fd33d50e40a1f71eb003e836dfeaf8773f0311eb27b4e4e165eeb12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01fc1087075d2af7134e888cb217976256b39eed99908b12f367d8e43329cccc",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-03-26T15:45:43Z",
    "title_canon_sha256": "1fe828e64ea9ead996d32b637beb2aa7543622182c51d0e4524c402bdc837da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.11983",
    "kind": "arxiv",
    "version": 1
  }
}