Pith Number

pith:BMZIO4PN

pith:2018:BMZIO4PNZPUGJLVCNK3GK7DFG5

not attested not anchored not stored refs pending

The Traveling-Wave Tube in the History of Telecommunication

Damien Minenna (CNES, \'Elise Duverdier, Fabrice Doveil (PIIM), Fr\'ed\'eric Andr\'e, Jean-Fran\c{c}ois Auboin, J\'er\^ome Puech (CNES), PIIM), Yves Elskens (PIIM)

arxiv:1803.11497 v1 · 2018-03-30 · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BMZIO4PNZPUGJLVCNK3GK7DFG5}

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	2026-05-17T23:55:14.872435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b328771edcbe864aea26ab6657c653752ff27d1909b2943f50a5c42f96310db

Aliases

arxiv: 1803.11497 · arxiv_version: 1803.11497v1 · doi: 10.48550/arxiv.1803.11497 · pith_short_12: BMZIO4PNZPUG · pith_short_16: BMZIO4PNZPUGJLVC · pith_short_8: BMZIO4PN

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/BMZIO4PNZPUGJLVCNK3GK7DFG5 \
  | 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: 0b328771edcbe864aea26ab6657c653752ff27d1909b2943f50a5c42f96310db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72cfca08df085af70af7368487b2bcbe559c99ef0d250fd14f46491396a5ad8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2018-03-30T14:58:39Z",
    "title_canon_sha256": "d019f04bceac19735a9b2995c0228d195ef75b020b47c2bf67599cfef7bd1e4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11497",
    "kind": "arxiv",
    "version": 1
  }
}