Pith Number

pith:F5EBEHHU

pith:2019:F5EBEHHU25YSJX6O3ZTZRB5TTU

not attested not anchored not stored refs pending

Fully-control of OAM vortex beam and realization of retro and negative reflection at oblique incidence using dual-band 2-bit coding metasurface

Hamza Ahmad Madni, Lei Zhang, Shahid Iqbal, Shuo Liu, Tie Jun Cui

arxiv:1905.07080 v1 · 2019-05-17 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5EBEHHU25YSJX6O3ZTZRB5TTU}

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	2026-05-17T23:45:57.356260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f48121cf4d77124dfcede679887b39d1191e7d866b6fa6b1510c97ddc4bde1a

Aliases

arxiv: 1905.07080 · arxiv_version: 1905.07080v1 · doi: 10.48550/arxiv.1905.07080 · pith_short_12: F5EBEHHU25YS · pith_short_16: F5EBEHHU25YSJX6O · pith_short_8: F5EBEHHU

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/F5EBEHHU25YSJX6O3ZTZRB5TTU \
  | 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: 2f48121cf4d77124dfcede679887b39d1191e7d866b6fa6b1510c97ddc4bde1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d529adfecb4dd33eae8bfc19007207bdc2d11c92c62615b6ee481d76f706e7c5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-05-17T01:28:58Z",
    "title_canon_sha256": "bef124350cc0f2451b7ef0cf3512266592b5f198efcf4774c4c05ffcf837fe51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07080",
    "kind": "arxiv",
    "version": 1
  }
}