Pith Number

pith:A6TKWBXQ

pith:2013:A6TKWBXQQRKC4FPRGB5VW5BTQF

not attested not anchored not stored refs pending

On a regularized scheme for approximate acoustic cloaking using transformation optics

Hoai-Minh Nguyen

arxiv:1309.5734 v1 · 2013-09-23 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6TKWBXQQRKC4FPRGB5VW5BTQF}

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	2026-05-18T03:12:34.351044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07a6ab06f084542e15f1307b5b743381443ef5f35060d793896a739560beb070

Aliases

arxiv: 1309.5734 · arxiv_version: 1309.5734v1 · doi: 10.48550/arxiv.1309.5734 · pith_short_12: A6TKWBXQQRKC · pith_short_16: A6TKWBXQQRKC4FPR · pith_short_8: A6TKWBXQ

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/A6TKWBXQQRKC4FPRGB5VW5BTQF \
  | 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: 07a6ab06f084542e15f1307b5b743381443ef5f35060d793896a739560beb070

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "071166283b8c87cf12609ead357a8823b7e444479d24a5da3a8d6bafd7a1b47a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-09-23T09:13:13Z",
    "title_canon_sha256": "068f75308e04db8581f5fdec24a1f3d34653d83f1f07915381d5b95e138ab877"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5734",
    "kind": "arxiv",
    "version": 1
  }
}