Pith Number

pith:VTCWHU3P

pith:2004:VTCWHU3P2RFXC3WAK2RZ3JHLNY

not attested not anchored not stored refs pending

Near-sighted superlens

Evgenii E. Narimanov, Viktor A. Podolskiy

arxiv:physics/0403139 v2 · 2004-03-30 · physics.optics · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VTCWHU3P2RFXC3WAK2RZ3JHLNY}

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	2026-07-04T16:49:49.786221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acc563d36fd44b716ec056a39da4eb6e2bfa399c6ec575a2beb7d32689318603

Aliases

arxiv: physics/0403139 · arxiv_version: physics/0403139v2 · doi: 10.48550/arxiv.physics/0403139 · pith_short_12: VTCWHU3P2RFX · pith_short_16: VTCWHU3P2RFXC3WA · pith_short_8: VTCWHU3P

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/VTCWHU3P2RFXC3WAK2RZ3JHLNY \
  | 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: acc563d36fd44b716ec056a39da4eb6e2bfa399c6ec575a2beb7d32689318603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e919e1d7a69375d7ee01dad110968e71a27a4e540d0a9437d5fee745ff7d9d22",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2004-03-30T00:46:35Z",
    "title_canon_sha256": "cf55ce4bf3a10e403bdb9623141a52c2f8a7531dd23b384d43b9992e14487a8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0403139",
    "kind": "arxiv",
    "version": 2
  }
}