Pith Number

pith:SS5C2CPB

pith:2012:SS5C2CPBULNUEBDJIY5WAJ3KIC

not attested not anchored not stored refs pending

Space-coiling metamaterials with double negativity and conical dispersion

Chi Hou Chan, Fu Liu, Jensen Li, Jinjin Wang, Kung Bo Ng, Sangyoon Lee, Seunghoon Han, Shukin Lok, Tianhua Feng, Zixian Liang

arxiv:1212.0782 v1 · 2012-12-04 · cond-mat.mtrl-sci · physics.class-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SS5C2CPBULNUEBDJIY5WAJ3KIC}

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	2026-05-18T03:39:15.231853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ba2d09e1a2db420469463b60276a4082f0293373ccc3765b167d62066a03bb

Aliases

arxiv: 1212.0782 · arxiv_version: 1212.0782v1 · doi: 10.48550/arxiv.1212.0782 · pith_short_12: SS5C2CPBULNU · pith_short_16: SS5C2CPBULNUEBDJ · pith_short_8: SS5C2CPB

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/SS5C2CPBULNUEBDJIY5WAJ3KIC \
  | 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: 94ba2d09e1a2db420469463b60276a4082f0293373ccc3765b167d62066a03bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d91ba965f2ee237400b791d05974b16e4b04faaed7931a8feb09ecb260e0a10d",
    "cross_cats_sorted": [
      "physics.class-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-12-04T16:24:44Z",
    "title_canon_sha256": "55529016c16050f1929bf0700214f14c896a2934b86c59b5a1c3db96e027c79b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0782",
    "kind": "arxiv",
    "version": 1
  }
}