Pith Number

pith:O2PKRZBU

pith:2020:O2PKRZBUKWT3THUEW7DRLB5E7B

not attested not anchored not stored refs pending

Direct quantification of topological protection in symmetry-protected photonic edge states at telecom wavelengths

E. Verhagen, L. Kuipers, R. Barczyk, S. Arora, T. Bauer

arxiv:2008.06497 v2 · 2020-08-14 · 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{O2PKRZBUKWT3THUEW7DRLB5E7B}

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	2026-07-05T01:29:14.595218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769ea8e43455a7b99e84b7c71587a4f86cf6e1f09569c8011150d596ec6047bf

Aliases

arxiv: 2008.06497 · arxiv_version: 2008.06497v2 · doi: 10.48550/arxiv.2008.06497 · pith_short_12: O2PKRZBUKWT3 · pith_short_16: O2PKRZBUKWT3THUE · pith_short_8: O2PKRZBU

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/O2PKRZBUKWT3THUEW7DRLB5E7B \
  | 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: 769ea8e43455a7b99e84b7c71587a4f86cf6e1f09569c8011150d596ec6047bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf04f47b2975be544872910556ad32d6f401dff9e280fd41e176057bc45567bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-08-14T17:59:05Z",
    "title_canon_sha256": "bdf8d2366dac8267ec4311fc12cdc46f1fb79479d1d360c9137a16ff32e00670"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.06497",
    "kind": "arxiv",
    "version": 2
  }
}