Pith Number

pith:5EZH3GMD

pith:2018:5EZH3GMDQPA2DYAB655UDZZSUX

not attested not anchored not stored refs pending

Theory of electromagnetic wave frequency upconversion in dynamic media

Kenan Qu, Matthew R. Edwards, Nathaniel J. Fisch, Qing Jia

arxiv:1804.07358 v2 · 2018-04-19 · physics.plasm-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{5EZH3GMDQPA2DYAB655UDZZSUX}

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	2026-05-18T00:08:20.796342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9327d998383c1a1e001f77b41e732a5e82ae689456f696790e2cadd54b2d7f5

Aliases

arxiv: 1804.07358 · arxiv_version: 1804.07358v2 · doi: 10.48550/arxiv.1804.07358 · pith_short_12: 5EZH3GMDQPA2 · pith_short_16: 5EZH3GMDQPA2DYAB · pith_short_8: 5EZH3GMD

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/5EZH3GMDQPA2DYAB655UDZZSUX \
  | 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: e9327d998383c1a1e001f77b41e732a5e82ae689456f696790e2cadd54b2d7f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bcdabadce823a598cb984122e33da144a6ea3666ff66ca03c62dc6e028a8eb8",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2018-04-19T20:04:28Z",
    "title_canon_sha256": "39a044ab36255bbac57ed5956f6ff207859aa4227c9c6d278363a5023a5bdb08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07358",
    "kind": "arxiv",
    "version": 2
  }
}