Pith Number

pith:2R3UZFOT

pith:2014:2R3UZFOTF7FYQEFGYQ64R4PICF

not attested not anchored not stored refs pending

Robust acoustic cloaking with density-near-zero materials

Baowen Li, Cheng-Wei Qiu, Jiajun Zhao, Tiancheng Han, Zhining Chen

arxiv:1402.3355 v1 · 2014-02-14 · physics.class-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{2R3UZFOTF7FYQEFGYQ64R4PICF}

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	2026-05-18T02:59:05.475206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4774c95d32fcb8810a6c43dc8f1e8117174df442dfc9c8fedd2e018bdb912ca

Aliases

arxiv: 1402.3355 · arxiv_version: 1402.3355v1 · doi: 10.48550/arxiv.1402.3355 · pith_short_12: 2R3UZFOTF7FY · pith_short_16: 2R3UZFOTF7FYQEFG · pith_short_8: 2R3UZFOT

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/2R3UZFOTF7FYQEFGYQ64R4PICF \
  | 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: d4774c95d32fcb8810a6c43dc8f1e8117174df442dfc9c8fedd2e018bdb912ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d500250252a8e21c778f408ccaa354870db23986c9f50531c4d888bd68b4bf7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2014-02-14T04:06:15Z",
    "title_canon_sha256": "34004d2f9dcb5a1b5d572a8f84ca26dfad6b9b009da28daad1c574e1571b214f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3355",
    "kind": "arxiv",
    "version": 1
  }
}