Pith Number

pith:W4SQZVRO

pith:2021:W4SQZVRO4TURM45U5R2752RFVM

not attested not anchored not stored refs pending

On the Design of Modular Reflecting EM Skins for Enhanced Urban Wireless Coverage

Andrea Massa, Danilo Erricolo, Giacomo Oliveri, Marco Salucci, Nicola Anselmi, Paolo Rocca, Pietro Da R\`u

arxiv:2110.09350 v1 · 2021-10-18 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4SQZVRO4TURM45U5R2752RFVM}

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	2026-07-05T05:18:23.675012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7250cd62ee4e91673b4ec75feea25ab18607ea507b059a21c739002c45dfbb4

Aliases

arxiv: 2110.09350 · arxiv_version: 2110.09350v1 · doi: 10.48550/arxiv.2110.09350 · pith_short_12: W4SQZVRO4TUR · pith_short_16: W4SQZVRO4TURM45U · pith_short_8: W4SQZVRO

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/W4SQZVRO4TURM45U5R2752RFVM \
  | 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: b7250cd62ee4e91673b4ec75feea25ab18607ea507b059a21c739002c45dfbb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "108509f2ceea0fbd79350f23d40a5f0fbeccbc6c785f4eaa8abc0d6dd03b8980",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-10-18T14:23:30Z",
    "title_canon_sha256": "00997cd10aeaa1e57128f116ec81d6f37b0d2d7288030b021312c12c80dba8c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.09350",
    "kind": "arxiv",
    "version": 1
  }
}