Pith Number

pith:2F5SGOJH

pith:2025:2F5SGOJHS7PUEOSLRBHAVM2MJE

not attested not anchored not stored refs pending

Nonreciprocal metasurfaces with epsilon-near-zero materials

Aditya Tripathi, Albert Mathew, Basudeb Sain, Piyush Jangid, Rebecca Aschwanden, Sergey Kruk, Thomas Zentgraf

arxiv:2501.11920 v2 · 2025-01-21 · 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{2F5SGOJHS7PUEOSLRBHAVM2MJE}

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	2026-07-05T10:04:22.982994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17b23392797df423a4b884e0ab34c4917fd6291cb78683cc6b89ee1c2bbd80b

Aliases

arxiv: 2501.11920 · arxiv_version: 2501.11920v2 · doi: 10.48550/arxiv.2501.11920 · pith_short_12: 2F5SGOJHS7PU · pith_short_16: 2F5SGOJHS7PUEOSL · pith_short_8: 2F5SGOJH

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/2F5SGOJHS7PUEOSLRBHAVM2MJE \
  | 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: d17b23392797df423a4b884e0ab34c4917fd6291cb78683cc6b89ee1c2bbd80b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4493034ba908dccb0fa2b2f5fdb1a583a47e0c96cab62f1921758bfac583eb",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-01-21T06:48:18Z",
    "title_canon_sha256": "da1b7ebbea6cff5acba9c798c10f436002c4d7333862b827e97b89d110ef8816"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.11920",
    "kind": "arxiv",
    "version": 2
  }
}