Pith Number

pith:35PCOUS6

pith:2019:35PCOUS6UV26NVOGIJ4WZ23WUW

not attested not anchored not stored refs pending

Omnidirectional perfect acoustic cloak realized by homogeneous materials

Ali Abdolali, Hooman Barati sedeh, Mohammad Hosein Fakheri

arxiv:1911.07073 v1 · 2019-11-16 · 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{35PCOUS6UV26NVOGIJ4WZ23WUW}

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	2026-07-05T00:19:42.711559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df5e27525ea575e6d5c642796ceb76a588ae84e551aca509a2d7c9fdc8fc6091

Aliases

arxiv: 1911.07073 · arxiv_version: 1911.07073v1 · doi: 10.48550/arxiv.1911.07073 · pith_short_12: 35PCOUS6UV26 · pith_short_16: 35PCOUS6UV26NVOG · pith_short_8: 35PCOUS6

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/35PCOUS6UV26NVOGIJ4WZ23WUW \
  | 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: df5e27525ea575e6d5c642796ceb76a588ae84e551aca509a2d7c9fdc8fc6091

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d5dada2883b0d58a20836dff59a61360444c60c88ba665e3d6d6bbba8b2586a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2019-11-16T18:29:12Z",
    "title_canon_sha256": "cd136bb84c4a56f469fa328cbddf03d780505f2fd9cc38b1b263146a18c265e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.07073",
    "kind": "arxiv",
    "version": 1
  }
}