Pith Number

pith:7H2DDF3N

pith:2020:7H2DDF3NODJLRLZSYNA7LOA4SN

not attested not anchored not stored refs pending

Ultrathin carpet cloak enabled by infinitely anisotropic medium

Ali Abdolali, Mohammad Hosein Fakheri

arxiv:2012.15751 v1 · 2020-12-19 · physics.app-ph · physics.class-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7H2DDF3NODJLRLZSYNA7LOA4SN}

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	2026-07-05T02:03:21.336759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9f431976d70d2b8af32c341f5b81c935243ab8241ad4d842fbc11b1289be5db

Aliases

arxiv: 2012.15751 · arxiv_version: 2012.15751v1 · doi: 10.48550/arxiv.2012.15751 · pith_short_12: 7H2DDF3NODJL · pith_short_16: 7H2DDF3NODJLRLZS · pith_short_8: 7H2DDF3N

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/7H2DDF3NODJLRLZSYNA7LOA4SN \
  | 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: f9f431976d70d2b8af32c341f5b81c935243ab8241ad4d842fbc11b1289be5db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "910655282388356242ba039cd2f66ca2d0720ac861e051aad8ea4cb2b07c5c57",
    "cross_cats_sorted": [
      "physics.class-ph",
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2020-12-19T16:51:26Z",
    "title_canon_sha256": "3cb0f6eb92237adc4d5ffdac1120479204a1f53fedaa9fa4e49171d39ad8ac4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.15751",
    "kind": "arxiv",
    "version": 1
  }
}