Pith Number

pith:QNI5C7G3

pith:2022:QNI5C7G3C3XAWYEWDY375G45TP

not attested not anchored not stored refs pending

Topological insulator-based Dirac hyperbolic metamaterial with large mode indices

Mingyu Yu, Saadia Nasir, Sivakumar Vishnuvardhan Mambakkam, Stephanie Law, Yongchen Liu, Zhengtianye Wang

arxiv:2209.08398 v1 · 2022-09-17 · 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{QNI5C7G3C3XAWYEWDY375G45TP}

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	2026-07-05T04:58:40.793296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8351d17cdb16ee0b60961e37fe9b9d9bca4b6bd9a2860f35a6b20ae0b226a172

Aliases

arxiv: 2209.08398 · arxiv_version: 2209.08398v1 · doi: 10.48550/arxiv.2209.08398 · pith_short_12: QNI5C7G3C3XA · pith_short_16: QNI5C7G3C3XAWYEW · pith_short_8: QNI5C7G3

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/QNI5C7G3C3XAWYEWDY375G45TP \
  | 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: 8351d17cdb16ee0b60961e37fe9b9d9bca4b6bd9a2860f35a6b20ae0b226a172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1db2379168796d8706917660b628c4c62c11b60c81d388e8211b83bcbcf888a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2022-09-17T20:08:14Z",
    "title_canon_sha256": "21fc19ad8195ab3f7706371b703493e808bf898948a7582b56d2bc2e67be57eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.08398",
    "kind": "arxiv",
    "version": 1
  }
}