Pith Number

pith:SCA4KBQJ

pith:2025:SCA4KBQJ2IHZQCHYHSZ6VDXMSK

not attested not anchored not stored refs pending

Gigahertz directional light modulation with electro-optic metasurfaces

Anant Upadhyay, Christi Madsen, David Dolt, Kamran Entesari, Ramy Rady, Sam Lin, Samuel Palermo, Shoufeng Lan, Taeseung Hwang, Yixin Chen, Zi Jing Wong

arxiv:2501.06102 v1 · 2025-01-10 · 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{SCA4KBQJ2IHZQCHYHSZ6VDXMSK}

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	2026-07-05T09:59:33.317472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9081c50609d20f9808f83cb3ea8eec92b344da063656707db73d52975e79d27e

Aliases

arxiv: 2501.06102 · arxiv_version: 2501.06102v1 · doi: 10.48550/arxiv.2501.06102 · pith_short_12: SCA4KBQJ2IHZ · pith_short_16: SCA4KBQJ2IHZQCHY · pith_short_8: SCA4KBQJ

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/SCA4KBQJ2IHZQCHYHSZ6VDXMSK \
  | 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: 9081c50609d20f9808f83cb3ea8eec92b344da063656707db73d52975e79d27e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bdc74ee9f220ef52ff55132a355e615e43b373b49b4271ba346ff05b6b642e4",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-01-10T16:54:50Z",
    "title_canon_sha256": "613488d2e779b95f82ce782de3f1ab9602225e25ba3de28daa79a07c3cdb8bb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.06102",
    "kind": "arxiv",
    "version": 1
  }
}