Pith Number

pith:7O5R7GZI

pith:2012:7O5R7GZIWYJSUY7P5UH4YWMITL

not attested not anchored not stored refs pending

Studies on Negative Refractive Index without Absorption

E. Kuznetsova, R.M. Rajapakse, S.F. Yelin

arxiv:1210.8077 v1 · 2012-10-30 · physics.optics · physics.atom-ph · quant-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{7O5R7GZIWYJSUY7P5UH4YWMITL}

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	2026-05-18T03:41:57.114117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbbb1f9b28b6132a63efed0fcc59889aee0f191311fb62a8274a73ee37a5f213

Aliases

arxiv: 1210.8077 · arxiv_version: 1210.8077v1 · doi: 10.48550/arxiv.1210.8077 · pith_short_12: 7O5R7GZIWYJS · pith_short_16: 7O5R7GZIWYJSUY7P · pith_short_8: 7O5R7GZI

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/7O5R7GZIWYJSUY7P5UH4YWMITL \
  | 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: fbbb1f9b28b6132a63efed0fcc59889aee0f191311fb62a8274a73ee37a5f213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbce6b1dd3aa1b8fc4aee101edc14d95988acca106a3488bac68dd2046cf60df",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-10-30T16:43:05Z",
    "title_canon_sha256": "1819477821c292bc0de720b37468fffbf0a32f5aea3d2b4d67b0ca80ba8b45af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.8077",
    "kind": "arxiv",
    "version": 1
  }
}