Pith Number

pith:J7YPLPJ2

pith:2018:J7YPLPJ2EFAO5INDF63KWASEEM

not attested not anchored not stored refs pending

Sensing with exceptional surfaces: combining sensitivity with robustness

D.N. Christodoulides, J. Ren, M. Khajavikhan, Q. Zhong, R. El-Ganainy, S.K. Ozdemir

arxiv:1810.09417 v1 · 2018-10-22 · physics.optics · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7YPLPJ2EFAO5INDF63KWASEEM}

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	2026-05-17T23:47:59.331799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ff0f5bd3a2140eea1a32fb6ab02442305010ab12d6131b57b1ff0c52d934a85

Aliases

arxiv: 1810.09417 · arxiv_version: 1810.09417v1 · doi: 10.48550/arxiv.1810.09417 · pith_short_12: J7YPLPJ2EFAO · pith_short_16: J7YPLPJ2EFAO5IND · pith_short_8: J7YPLPJ2

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/J7YPLPJ2EFAO5INDF63KWASEEM \
  | 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: 4ff0f5bd3a2140eea1a32fb6ab02442305010ab12d6131b57b1ff0c52d934a85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e20882f9aeba0e6059003e2bb343eff283907698d9e8d31420f4a2bc96e8245",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-10-22T17:36:14Z",
    "title_canon_sha256": "9812914a59f43cbc0ef422f2030de18deafcd72e4443b533974d4365536d974d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09417",
    "kind": "arxiv",
    "version": 1
  }
}