Pith Number

pith:ZC2A5JIC

pith:2015:ZC2A5JIC4X43VFZKKKSDPACSDO

not attested not anchored not stored refs pending

Voigt-wave propagation in active materials

Akhlesh Lakhtakia (Pennsylvania State University), Tom G. Mackay (University of Edinburgh)

arxiv:1505.00030 v2 · 2015-04-30 · 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{ZC2A5JIC4X43VFZKKKSDPACSDO}

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	2026-05-18T00:40:54.225843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8b40ea502e5f9ba972a52a43780521bb0ec951d24bddfbf93df10499992285a

Aliases

arxiv: 1505.00030 · arxiv_version: 1505.00030v2 · doi: 10.48550/arxiv.1505.00030 · pith_short_12: ZC2A5JIC4X43 · pith_short_16: ZC2A5JIC4X43VFZK · pith_short_8: ZC2A5JIC

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/ZC2A5JIC4X43VFZKKKSDPACSDO \
  | 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: c8b40ea502e5f9ba972a52a43780521bb0ec951d24bddfbf93df10499992285a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82857582b704a6c872d3e20bfa5237fd51be69a53de1d8fbddd86894ab1c1471",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-04-30T20:50:44Z",
    "title_canon_sha256": "f3e631938d10dae8f5b342e6354bae0d18c2bea6ab108c04e22b0222dcc1dfec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00030",
    "kind": "arxiv",
    "version": 2
  }
}