Pith Number

pith:NE5BXUMH

pith:2018:NE5BXUMHK66UESAGLTFHZJHQ4G

not attested not anchored not stored refs pending

Boundary effect on acoustic cloak with unideal pentamode material

Gengkai Hu, Xiaoning Liu, Yi Chen

arxiv:1811.02109 v2 · 2018-11-06 · physics.class-ph · 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{NE5BXUMHK66UESAGLTFHZJHQ4G}

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	2026-05-17T23:39:25.347841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

693a1bd18757bd4248065cca7ca4f0e182a8fde56e46bd2f41e014414a05d0c8

Aliases

arxiv: 1811.02109 · arxiv_version: 1811.02109v2 · doi: 10.48550/arxiv.1811.02109 · pith_short_12: NE5BXUMHK66U · pith_short_16: NE5BXUMHK66UESAG · pith_short_8: NE5BXUMH

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/NE5BXUMHK66UESAGLTFHZJHQ4G \
  | 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: 693a1bd18757bd4248065cca7ca4f0e182a8fde56e46bd2f41e014414a05d0c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "630929c1ee4697810ef5c66b7d6246ab8191cfdd307431336e42b3c9035d4e0f",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2018-11-06T01:15:13Z",
    "title_canon_sha256": "bdad38ca534228da3283c486f829c133d7dc66a5467d1b9f9469a357bb9e834c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02109",
    "kind": "arxiv",
    "version": 2
  }
}