Pith Number

pith:LG7RD5SA

pith:2011:LG7RD5SA7LA3IZJVUIIFUWTGLF

not attested not anchored not stored refs pending

Towards an experimental realization of affinely transformed linearized QED vacuum via inverse homogenization

Akhlesh Lakhtakia (Pennsylvania State University), Tom G. Mackay (University of Edinburgh)

arxiv:1109.2125 v1 · 2011-09-09 · 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{LG7RD5SA7LA3IZJVUIIFUWTGLF}

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	2026-05-18T01:16:19.339205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59bf11f640fac1b46535a2105a5a665972cebd8c5b3999e646ad2b516e1f9457

Aliases

arxiv: 1109.2125 · arxiv_version: 1109.2125v1 · doi: 10.48550/arxiv.1109.2125 · pith_short_12: LG7RD5SA7LA3 · pith_short_16: LG7RD5SA7LA3IZJV · pith_short_8: LG7RD5SA

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/LG7RD5SA7LA3IZJVUIIFUWTGLF \
  | 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: 59bf11f640fac1b46535a2105a5a665972cebd8c5b3999e646ad2b516e1f9457

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30fd41c0f8dc523bdcedc90876d06afdecbfef1f543220c49f4781071219954a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-09-09T20:10:40Z",
    "title_canon_sha256": "e7e7f4e4cf33e598ce8856b1af7c5d03aa277f947505ed4f7a112dd6b7dcf66a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2125",
    "kind": "arxiv",
    "version": 1
  }
}