Pith Number

pith:7P7QZJTQ

pith:2018:7P7QZJTQORURILPNWU6UXUGU5L

not attested not anchored not stored refs pending

Quasi isotropic underwater acoustic carpet cloak based on latticed pentamode metafuid

Han Jia, Jun Yang, Xuecong Sun, Yafeng Bi, Zhaoyong Sun

arxiv:1811.12845 v2 · 2018-11-30 · 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{7P7QZJTQORURILPNWU6UXUGU5L}

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	2026-05-17T23:50:11.063395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbff0ca6707469142dedb53d4bd0d4eaeebcee086aced1d3a0cb178193d1b219

Aliases

arxiv: 1811.12845 · arxiv_version: 1811.12845v2 · doi: 10.48550/arxiv.1811.12845 · pith_short_12: 7P7QZJTQORUR · pith_short_16: 7P7QZJTQORURILPN · pith_short_8: 7P7QZJTQ

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/7P7QZJTQORURILPNWU6UXUGU5L \
  | 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: fbff0ca6707469142dedb53d4bd0d4eaeebcee086aced1d3a0cb178193d1b219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8aeb72bda8785d56f95bc648dd891ec5146189bff1fb01891603aa2160edf0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-11-30T15:33:44Z",
    "title_canon_sha256": "ba5b138f7406f7307de7cf0302081fceb24ba0e0363f689dc597b75c357544f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.12845",
    "kind": "arxiv",
    "version": 2
  }
}