Pith Number

pith:6WJ3ZCNV

pith:2011:6WJ3ZCNVCVHGOH7AWMYXPYJSM4

not attested not anchored not stored refs pending

Negative index of refraction in a four-level system with magnetoelectric cross coupling and local field corrections

F. Bello

arxiv:1107.0244 v1 · 2011-07-01 · cond-mat.mtrl-sci · 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{6WJ3ZCNVCVHGOH7AWMYXPYJSM4}

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	2026-05-18T04:18:52.796129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f593bc89b5154e671fe0b33177e132671445cd99d3918952beb1d4cfccd33ae1

Aliases

arxiv: 1107.0244 · arxiv_version: 1107.0244v1 · doi: 10.48550/arxiv.1107.0244 · pith_short_12: 6WJ3ZCNVCVHG · pith_short_16: 6WJ3ZCNVCVHGOH7A · pith_short_8: 6WJ3ZCNV

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/6WJ3ZCNVCVHGOH7AWMYXPYJSM4 \
  | 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: f593bc89b5154e671fe0b33177e132671445cd99d3918952beb1d4cfccd33ae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0431698b77d1d46a9a56f5702b51800737de42fcf7cde39ec1cb91804d1386bf",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2011-07-01T14:52:23Z",
    "title_canon_sha256": "42fb79c81f67a50b497ebae85df6ca67f2c61f1f2c1e97f145f431b2e6e7a906"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.0244",
    "kind": "arxiv",
    "version": 1
  }
}