Pith Number

pith:K2AKYIMH

pith:2009:K2AKYIMHDSCQ2XJFIDLWM6QKUX

not attested not anchored not stored refs pending

On the applications of mu=-1 metamaterial lenses for magnetic resonance imaging

Lukas Jelinek, Manuel J. Freire, Ricardo Marques

arxiv:0909.0550 v1 · 2009-09-02 · physics.med-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{K2AKYIMHDSCQ2XJFIDLWM6QKUX}

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	2026-05-18T02:12:00.487921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5680ac21871c850d5d2540d7667a0aa5fb1f44fb1569505f67c95ff8e63f2f5a

Aliases

arxiv: 0909.0550 · arxiv_version: 0909.0550v1 · doi: 10.48550/arxiv.0909.0550 · pith_short_12: K2AKYIMHDSCQ · pith_short_16: K2AKYIMHDSCQ2XJF · pith_short_8: K2AKYIMH

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/K2AKYIMHDSCQ2XJFIDLWM6QKUX \
  | 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: 5680ac21871c850d5d2540d7667a0aa5fb1f44fb1569505f67c95ff8e63f2f5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c52f9cd99fb19ca43b189e8e21b85c542ddab4db5e105387dd13387d8dd9bb02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2009-09-02T23:17:43Z",
    "title_canon_sha256": "538f4307e62ce4009ad872c44561142677e2c24284dcedf1e06e14b0993d6c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0550",
    "kind": "arxiv",
    "version": 1
  }
}