Pith Number

pith:4UW6347E

pith:2012:4UW6347EXFDJBE4ZRHUA7RONQH

not attested not anchored not stored refs pending

Non-magnetic negative-refraction systems for terahertz and far-infrared frequencies

Evgenii E. Narimanov, Leonid V. Alekseyev, Viktor A. Podolskiy

arxiv:1201.4514 v2 · 2012-01-21 · 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{4UW6347EXFDJBE4ZRHUA7RONQH}

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	2026-05-18T04:03:55.568984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e52dedf3e4b94690939989e80fc5cd81f2c0b3287df2ad0ebc854f318a0e9c54

Aliases

arxiv: 1201.4514 · arxiv_version: 1201.4514v2 · doi: 10.48550/arxiv.1201.4514 · pith_short_12: 4UW6347EXFDJ · pith_short_16: 4UW6347EXFDJBE4Z · pith_short_8: 4UW6347E

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/4UW6347EXFDJBE4ZRHUA7RONQH \
  | 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: e52dedf3e4b94690939989e80fc5cd81f2c0b3287df2ad0ebc854f318a0e9c54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9db54c200fc95da2c112db515f71648c365a4bebf985b41eddf8f6a2e167d919",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-01-21T22:09:11Z",
    "title_canon_sha256": "3501a59ce7e1e6cb0dcb4eeeb0f424a67219f5b995b60518d66b1ee68cc544b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4514",
    "kind": "arxiv",
    "version": 2
  }
}