Pith Number

pith:IBRPFYPG

pith:2019:IBRPFYPGOWXIG24DXLMQYEZDPX

not attested not anchored not stored refs pending

Structural Color 3D Printing By Shrinking Photonic Crystals

Cheng-Wei Qiu, Eleen H. H. Koay, Hailong Liu, Hao Wang, Jinfa Ho, Joel K. W. Yang, Julia R. Greer, Ray J. H. Ng, Ryan C. Ng, Valerian H. Hall-Chen, Yejing Liu, Zhaogang Dong

arxiv:1905.05913 v1 · 2019-05-15 · 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{IBRPFYPGOWXIG24DXLMQYEZDPX}

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	2026-07-05T00:10:36.816517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4062f2e1e675ae836b83bad90c13237df75a63e558ef5a559e3ac9b648527bb8

Aliases

arxiv: 1905.05913 · arxiv_version: 1905.05913v1 · doi: 10.48550/arxiv.1905.05913 · pith_short_12: IBRPFYPGOWXI · pith_short_16: IBRPFYPGOWXIG24D · pith_short_8: IBRPFYPG

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/IBRPFYPGOWXIG24DXLMQYEZDPX \
  | 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: 4062f2e1e675ae836b83bad90c13237df75a63e558ef5a559e3ac9b648527bb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "398d7b8f913dcda20d2867c73aba847d42fe7c50224383fa4eee7ed885e6e7b9",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-05-15T02:06:10Z",
    "title_canon_sha256": "266a03b5f820de37eade48ba039bbb1167e8913039069ecea72576b65d905227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05913",
    "kind": "arxiv",
    "version": 1
  }
}