Pith Number

pith:YF7RDRGT

pith:2019:YF7RDRGTLLZYDIYZWV7HBA2TFX

not attested not anchored not stored refs pending

Broad frequency shift of parametric processes in Epsilon-Near-Zero time-varying media

Alexandra Boltasseva, Clayton DeVault, Daniele Faccio, Enrico Carnemolla, Marcello Ferrera, Matteo Clerici, Stefano Vezzoli, Vincenzo Bruno, Vladimir M. Shalaev

arxiv:1912.00052 v1 · 2019-11-29 · 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{YF7RDRGTLLZYDIYZWV7HBA2TFX}

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	2026-07-05T00:22:54.596043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c17f11c4d35af381a319b57e7083532dcac06edd0681b7134188a53b34fab2f1

Aliases

arxiv: 1912.00052 · arxiv_version: 1912.00052v1 · doi: 10.48550/arxiv.1912.00052 · pith_short_12: YF7RDRGTLLZY · pith_short_16: YF7RDRGTLLZYDIYZ · pith_short_8: YF7RDRGT

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/YF7RDRGTLLZYDIYZWV7HBA2TFX \
  | 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: c17f11c4d35af381a319b57e7083532dcac06edd0681b7134188a53b34fab2f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58be9fc9891fe721c0d126b67da558cd2bf84963af504001065193b055415e1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-11-29T19:36:43Z",
    "title_canon_sha256": "89f56b5b1d10fa1f03818fad4d8dc6d6179628a63974e1ef48bbefcd829115b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.00052",
    "kind": "arxiv",
    "version": 1
  }
}