Pith Number

pith:4BQCY2WP

pith:2025:4BQCY2WP3JPQ6LW75EHSFSCTLB

not attested not anchored not stored refs pending

Topologically Protected Polaritonic Bound State in the Continuum

Andrea Alu, Eli Janzen, Harsh Gupta, James H. Edgar, Michele Tamagnone, Mingze He, Tatiana Contino

arxiv:2508.14702 v3 · 2025-08-20 · 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{4BQCY2WP3JPQ6LW75EHSFSCTLB}

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	2026-05-26T02:05:01.454422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0602c6acfda5f0f2edfe90f22c8535850cc51f8568599b9c3a12aff217b5b6f

Aliases

arxiv: 2508.14702 · arxiv_version: 2508.14702v3 · doi: 10.48550/arxiv.2508.14702 · pith_short_12: 4BQCY2WP3JPQ · pith_short_16: 4BQCY2WP3JPQ6LW7 · pith_short_8: 4BQCY2WP

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/4BQCY2WP3JPQ6LW75EHSFSCTLB \
  | 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: e0602c6acfda5f0f2edfe90f22c8535850cc51f8568599b9c3a12aff217b5b6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd20c0b25627d8f1f03dd0a32cf68ad249657687e38799a3b2dac13df83c032e",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-08-20T13:28:03Z",
    "title_canon_sha256": "4f2c82775ef501ea07e504e67a5ba144f26751c67902e1f8a98b36d76b81dfe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.14702",
    "kind": "arxiv",
    "version": 3
  }
}