Pith Number

pith:2AZ4GM2M

pith:2010:2AZ4GM2MGOOU6QGTNHWAINCHJK

not attested not anchored not stored refs pending

The effect of gain saturation in a gain compensated perfect lens

Aleksander V. Skaldeb{\o}, Harald E. Krogstad, Johannes Skaar, Magnus W. Haakestad, Marte P. Hatlo Andresen

arxiv:1007.2486 v1 · 2010-07-15 · 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{2AZ4GM2MGOOU6QGTNHWAINCHJK}

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	2026-05-18T04:42:44.338755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d033c3334c339d4f40d369ec0434474aaa8a7d456ec20366d47705c2759fb5a9

Aliases

arxiv: 1007.2486 · arxiv_version: 1007.2486v1 · doi: 10.48550/arxiv.1007.2486 · pith_short_12: 2AZ4GM2MGOOU · pith_short_16: 2AZ4GM2MGOOU6QGT · pith_short_8: 2AZ4GM2M

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/2AZ4GM2MGOOU6QGTNHWAINCHJK \
  | 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: d033c3334c339d4f40d369ec0434474aaa8a7d456ec20366d47705c2759fb5a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0798c8dc45e120e7c82619fd41a074e06052a8c0eed1c7f1b2f1b2594e81fc30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2010-07-15T06:17:49Z",
    "title_canon_sha256": "5ca5db223d7540c4877930da28b600c8a7d4dcf6416e112b06ae49a479fb9f61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2486",
    "kind": "arxiv",
    "version": 1
  }
}