Pith Number

pith:QR3VINNG

pith:2017:QR3VINNG4EXTHRSL5ATEQRWQWV

not attested not anchored not stored refs pending

Acoustic Metacages for Omnidirectional Sound Shielding

Chen Shen, Junfei Li, Steven A. Cummer, Yangbo Xie, Yun Jing

arxiv:1708.08978 v1 · 2017-08-29 · physics.app-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{QR3VINNG4EXTHRSL5ATEQRWQWV}

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	2026-05-18T00:36:21.514792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84775435a6e12f33c64be8264846d0b56eb70035b11cb059a11d9ee190089065

Aliases

arxiv: 1708.08978 · arxiv_version: 1708.08978v1 · doi: 10.48550/arxiv.1708.08978 · pith_short_12: QR3VINNG4EXT · pith_short_16: QR3VINNG4EXTHRSL · pith_short_8: QR3VINNG

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/QR3VINNG4EXTHRSL5ATEQRWQWV \
  | 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: 84775435a6e12f33c64be8264846d0b56eb70035b11cb059a11d9ee190089065

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dda8bb1a64ae10fbc58e24806f0fe12fe821e58410adf880682fb4798c3b3af6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2017-08-29T19:25:03Z",
    "title_canon_sha256": "5bb892ec921d55455067b07c77801bc1dd2f1739e71cf8ad8f04628ccf0ef002"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08978",
    "kind": "arxiv",
    "version": 1
  }
}