Pith Number

pith:5CZBBOKI

pith:2017:5CZBBOKI6RIDPIOABZTLLFRV6M

not attested not anchored not stored refs pending

Optical time reversal from time-dependent Epsilon-Near-Zero media

Alexandra Boltasseva, Audrius Dubietis, Clayton DeVault, Daniele Faccio, Marcello Ferrera, Matteo Clerici, Stefano Vezzoli, Thomas Roger, Vincenzo Bruno, Vladimir M. Shalaev

arxiv:1709.06972 v1 · 2017-09-20 · 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{5CZBBOKI6RIDPIOABZTLLFRV6M}

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	2026-05-18T00:24:51.554851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8b210b948f45037a1c00e66b59635f321fe4aa563cca8b42cc57a752798f5ca

Aliases

arxiv: 1709.06972 · arxiv_version: 1709.06972v1 · doi: 10.48550/arxiv.1709.06972 · pith_short_12: 5CZBBOKI6RID · pith_short_16: 5CZBBOKI6RIDPIOA · pith_short_8: 5CZBBOKI

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/5CZBBOKI6RIDPIOABZTLLFRV6M \
  | 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: e8b210b948f45037a1c00e66b59635f321fe4aa563cca8b42cc57a752798f5ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88d5e52aedcec0a9e18a005bb32d1e33d97a27a10ab722105ecbdf5e9a629b51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-09-20T17:11:43Z",
    "title_canon_sha256": "a10d1c1736744834a7de60f926f0c5ae11c89532310699293c3548017ffa0add"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06972",
    "kind": "arxiv",
    "version": 1
  }
}