Pith Number

pith:P6JPQC3K

pith:2020:P6JPQC3K7VPAOEVUCD42C3TCLU

not attested not anchored not stored refs pending

Design and Analysis of Extended Depth of Focus Metalenses for Achromatic Computational Imaging

Arka Majumdar, James Whitehead, Luocheng Huang, Shane Colburn

arxiv:2003.09599 v1 · 2020-03-21 · physics.optics · eess.IV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6JPQC3K7VPAOEVUCD42C3TCLU}

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	2026-07-05T02:53:51.203761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f92f80b6afd5e0712b410f9a16e625d258ebabe7460bf339d9b03d1f33c7177

Aliases

arxiv: 2003.09599 · arxiv_version: 2003.09599v1 · doi: 10.48550/arxiv.2003.09599 · pith_short_12: P6JPQC3K7VPA · pith_short_16: P6JPQC3K7VPAOEVU · pith_short_8: P6JPQC3K

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/P6JPQC3K7VPAOEVUCD42C3TCLU \
  | 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: 7f92f80b6afd5e0712b410f9a16e625d258ebabe7460bf339d9b03d1f33c7177

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c20635948dba21d476a3b01aa3800cbe30090b605f56f50f6d7e6cdfa3080c39",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-03-21T07:33:43Z",
    "title_canon_sha256": "8799e6eb3ad70b1f2d32fe86072197cdcadde652479aad97e6bd1b67cd37d507"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.09599",
    "kind": "arxiv",
    "version": 1
  }
}