Pith Number

pith:H2H3OBY7

pith:2010:H2H3OBY7GJJYLM2VHOXNFVXCPI

not attested not anchored not stored refs pending

Intra-connected three-dimensionally isotropic bulk negative index photonic metamaterial

Costas M. Soukoulis, Durdu O. Guney, Thomas Koschny

arxiv:1004.0389 v1 · 2010-04-02 · 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{H2H3OBY7GJJYLM2VHOXNFVXCPI}

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	2026-05-18T02:08:14.712053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e8fb7071f325385b3553baed2d6e27a2c264901ea892dde6c832b549a851799

Aliases

arxiv: 1004.0389 · arxiv_version: 1004.0389v1 · doi: 10.48550/arxiv.1004.0389 · pith_short_12: H2H3OBY7GJJY · pith_short_16: H2H3OBY7GJJYLM2V · pith_short_8: H2H3OBY7

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/H2H3OBY7GJJYLM2VHOXNFVXCPI \
  | 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: 3e8fb7071f325385b3553baed2d6e27a2c264901ea892dde6c832b549a851799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cad3be802a219401526b47fee2e3e7ec4c62387f89ad5ed03702c96d79d3298",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2010-04-02T21:08:30Z",
    "title_canon_sha256": "f489c2e46923f587cac35b7e295089dc9319d01976766a934485697ac6f06525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0389",
    "kind": "arxiv",
    "version": 1
  }
}