Pith Number

pith:XAV5UPRC

pith:2012:XAV5UPRCAND5CCPNXR5YS2R5PG

not attested not anchored not stored refs pending

Hyperbolic metamaterials: nonlocal response regularizes broadband super-singularity

Martijn Wubs, N. Asger Mortensen, Wei Yan

arxiv:1204.5413 v2 · 2012-04-24 · physics.optics · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XAV5UPRCAND5CCPNXR5YS2R5PG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:39:52.972023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b82bda3e220347d109edbc7b896a3d7995237c05eb8efab123e8ea59194f850c

Aliases

arxiv: 1204.5413 · arxiv_version: 1204.5413v2 · doi: 10.48550/arxiv.1204.5413 · pith_short_12: XAV5UPRCAND5 · pith_short_16: XAV5UPRCAND5CCPN · pith_short_8: XAV5UPRC

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/XAV5UPRCAND5CCPNXR5YS2R5PG \
  | 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: b82bda3e220347d109edbc7b896a3d7995237c05eb8efab123e8ea59194f850c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49c9314aa361f00e0f3842f0d244c9bd4e31c1cb9baefdfd2c9f5de9719f9681",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-04-24T15:38:29Z",
    "title_canon_sha256": "167b64d4d53a7edccdfd4d08d49bbb182ed615d65340e8d8c5acef882c8b8fd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5413",
    "kind": "arxiv",
    "version": 2
  }
}