Pith Number

pith:2OZF7K2D

pith:2018:2OZF7K2DIQ7PEAGNDRMSZTMXDW

not attested not anchored not stored refs pending

On electromagnetic surface waves supported by an isotropic chiral material

James Noonan (University of Edinburgh), Tom G. Mackay (University of Edinburgh)

arxiv:1809.08770 v1 · 2018-09-24 · 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{2OZF7K2DIQ7PEAGNDRMSZTMXDW}

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	2026-05-17T23:58:13.655227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b25fab43443ef200cd1c592ccd971d87d5996e72489eb5b16d8a7da16c3d7c

Aliases

arxiv: 1809.08770 · arxiv_version: 1809.08770v1 · doi: 10.48550/arxiv.1809.08770 · pith_short_12: 2OZF7K2DIQ7P · pith_short_16: 2OZF7K2DIQ7PEAGN · pith_short_8: 2OZF7K2D

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/2OZF7K2DIQ7PEAGNDRMSZTMXDW \
  | 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: d3b25fab43443ef200cd1c592ccd971d87d5996e72489eb5b16d8a7da16c3d7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fd76df4b139ef49a219c60e14a6c368e24fddedc9423e471f9198380ddee677",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-09-24T06:11:15Z",
    "title_canon_sha256": "4601f64bda16b125ca0ff0bdbf1d10159ec876bf3942b1b05ba3a2f1208f28e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08770",
    "kind": "arxiv",
    "version": 1
  }
}