Pith Number

pith:VV5D4UYJ

pith:2014:VV5D4UYJDMTJONQPL62JU3UCH6

not attested not anchored not stored refs pending

Extraordinary focusing of sound above a soda can array without time reversal

A. A. Maznev, Gen Gu, Jun Xu, Nicholas Fang, Shu-yi Zhang, Shu-yuan Sun, Yong Shen

arxiv:1411.1016 v2 · 2014-11-01 · 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{VV5D4UYJDMTJONQPL62JU3UCH6}

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	2026-05-18T02:18:31.391848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad7a3e53091b2697360f5fb49a6e823fb8a7d52ee6f7006d17e5f78787d04618

Aliases

arxiv: 1411.1016 · arxiv_version: 1411.1016v2 · doi: 10.48550/arxiv.1411.1016 · pith_short_12: VV5D4UYJDMTJ · pith_short_16: VV5D4UYJDMTJONQP · pith_short_8: VV5D4UYJ

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/VV5D4UYJDMTJONQPL62JU3UCH6 \
  | 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: ad7a3e53091b2697360f5fb49a6e823fb8a7d52ee6f7006d17e5f78787d04618

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11d97ad44ddfdbe1c20d37c48cb4cdcb2a69c0ced6b31c8910581a7a1c8de6e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2014-11-01T03:14:55Z",
    "title_canon_sha256": "8707dbb610d913a838241b1200ecd3df01a54cf2d5eb539312733a61c4a13335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1016",
    "kind": "arxiv",
    "version": 2
  }
}