Pith Number

pith:6K4DCNN6

pith:2022:6K4DCNN6NCQ7JLPGKV3JPH2YXT

not attested not anchored not stored refs pending

High fill factor confocal compound eyes fabricated by direct laser writing for better imaging quality

Guangqiang He, Haodong Zhu, Junyu Xia, Minglong Li, Ming Zhao, Yi Huang, Zhenyu Yang

arxiv:2201.01915 v1 · 2022-01-06 · physics.optics · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6K4DCNN6NCQ7JLPGKV3JPH2YXT}

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	2026-07-05T03:46:27.973002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2b83135be68a1f4ade65576979f58bcf80cbdf4dfb0630b5848a16a4668acba

Aliases

arxiv: 2201.01915 · arxiv_version: 2201.01915v1 · doi: 10.48550/arxiv.2201.01915 · pith_short_12: 6K4DCNN6NCQ7 · pith_short_16: 6K4DCNN6NCQ7JLPG · pith_short_8: 6K4DCNN6

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/6K4DCNN6NCQ7JLPGKV3JPH2YXT \
  | 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: f2b83135be68a1f4ade65576979f58bcf80cbdf4dfb0630b5848a16a4668acba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a99097da943fdb96289408923042e6716fef5299613cda72f81ffd2ab7045e87",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2022-01-06T04:06:04Z",
    "title_canon_sha256": "8d405690b70fc8a2180caa60c9142511bd70774f249d2cea113229793fd06df9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.01915",
    "kind": "arxiv",
    "version": 1
  }
}