Pith Number

pith:VKEG3EM5

pith:2018:VKEG3EM56IV2FVSFXXNVOCK3MB

not attested not anchored not stored refs pending

Optical concentrator from a hyperbolic liquid crystal metamaterial

Bertrand Berche, David Figueiredo, Fernando Moraes, Frankbelson dos S. Azevedo, S\'ebastien Fumeron

arxiv:1806.11514 v2 · 2018-06-29 · physics.optics · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VKEG3EM56IV2FVSFXXNVOCK3MB}

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	2026-05-17T23:58:52.665666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa886d919df22ba2d645bddb57095b606113f98326f6d49fb6bacffeca04a994

Aliases

arxiv: 1806.11514 · arxiv_version: 1806.11514v2 · doi: 10.48550/arxiv.1806.11514 · pith_short_12: VKEG3EM56IV2 · pith_short_16: VKEG3EM56IV2FVSF · pith_short_8: VKEG3EM5

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/VKEG3EM56IV2FVSFXXNVOCK3MB \
  | 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: aa886d919df22ba2d645bddb57095b606113f98326f6d49fb6bacffeca04a994

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdc2b8aa5d4ab32ded9406843eedb0f95485bee32b3c1cd3173c75f0b1d0fece",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-06-29T16:15:53Z",
    "title_canon_sha256": "5d5dc58030a260cbd3d01f40db9ca4f1476d6802e6a23422a92dc8d08d5c4d6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.11514",
    "kind": "arxiv",
    "version": 2
  }
}