Pith Number

pith:3PQROJFU

pith:2015:3PQROJFU2LY3CB63GWCG4IW4MQ

not attested not anchored not stored refs pending

Active Invisibility Cloaks in One Dimension

Ali Mostafazadeh

arxiv:1504.01756 v3 · 2015-04-05 · physics.class-ph · physics.optics · quant-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{3PQROJFU2LY3CB63GWCG4IW4MQ}

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	2026-05-18T01:55:41.696801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbe11724b4d2f1b107db35846e22dc6417001fac17777164f03b761479627bfd

Aliases

arxiv: 1504.01756 · arxiv_version: 1504.01756v3 · doi: 10.48550/arxiv.1504.01756 · pith_short_12: 3PQROJFU2LY3 · pith_short_16: 3PQROJFU2LY3CB63 · pith_short_8: 3PQROJFU

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/3PQROJFU2LY3CB63GWCG4IW4MQ \
  | 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: dbe11724b4d2f1b107db35846e22dc6417001fac17777164f03b761479627bfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a75bc242457e89e61feb245b7970793c49342c8e8abde2eaf9f004822bc70edb",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2015-04-05T11:06:21Z",
    "title_canon_sha256": "ccf927d8af3055d3fa6879c7cc1cbef300fde15797d671825b6f67603c5d146c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01756",
    "kind": "arxiv",
    "version": 3
  }
}