Pith Number

pith:OL2TKE2C

pith:2009:OL2TKE2CRSVKEKO2WOCCCWALSC

not attested not anchored not stored refs pending

Extraordinary acoustic reflection enhancement by acoustically-transparent thin plates

Chunyin Qiu, Gangqiang Liu, Jun Mei, Manzhu Ke, Rui Hao, Shasha Peng, Weijia Wen, Zhaojian He, Zhengyou Liu?

arxiv:0912.4629 v2 · 2009-12-23 · cond-mat.other

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OL2TKE2CRSVKEKO2WOCCCWALSC}

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	2026-05-18T03:23:56.333582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72f53513428caaa229dab38421580b90a0a47faa3fc791cfa92b3a0f9ade1e15

Aliases

arxiv: 0912.4629 · arxiv_version: 0912.4629v2 · doi: 10.48550/arxiv.0912.4629 · pith_short_12: OL2TKE2CRSVK · pith_short_16: OL2TKE2CRSVKEKO2 · pith_short_8: OL2TKE2C

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/OL2TKE2CRSVKEKO2WOCCCWALSC \
  | 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: 72f53513428caaa229dab38421580b90a0a47faa3fc791cfa92b3a0f9ade1e15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "956e31765a0e7cca101647a11158e2c18c3467ad2f11b4dc292605ba809d3d7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2009-12-23T12:55:10Z",
    "title_canon_sha256": "d3d2503623172687d231f0f0cee5c2e0ff0b93f88dcd1ea608dbd8037847c621"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4629",
    "kind": "arxiv",
    "version": 2
  }
}