Pith Number

pith:UMFPOG5Z

pith:2019:UMFPOG5ZM336U2NI42C5O2NMJ5

not attested not anchored not stored refs pending

Novel topological beam-splitting in photonic crystals

Mehul P. Makwana, Richard Craster, Sebastien Guenneau

arxiv:1902.00072 v2 · 2019-01-31 · 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{UMFPOG5ZM336U2NI42C5O2NMJ5}

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	2026-05-17T23:42:24.200053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a30af71bb966f7ea69a8e685d769ac4f53af04152fc49729caf235e711aee5d4

Aliases

arxiv: 1902.00072 · arxiv_version: 1902.00072v2 · doi: 10.48550/arxiv.1902.00072 · pith_short_12: UMFPOG5ZM336 · pith_short_16: UMFPOG5ZM336U2NI · pith_short_8: UMFPOG5Z

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/UMFPOG5ZM336U2NI42C5O2NMJ5 \
  | 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: a30af71bb966f7ea69a8e685d769ac4f53af04152fc49729caf235e711aee5d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c453f617c66fa0d3c31a23890aa52ba5f9d93021fcbeeb79a6e5c3faab1717",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-01-31T21:14:46Z",
    "title_canon_sha256": "6fadc3a844eefb2a25098f874d047356761f502253f62b54e7d401f4308276be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00072",
    "kind": "arxiv",
    "version": 2
  }
}