Pith Number

pith:K7HGQOZ6

pith:2019:K7HGQOZ64XD3LE52MJ75SRHCRQ

not attested not anchored not stored refs pending

Unitary Two-State Quantum Operators Realized By Quadrupole Fields in the Electron Microscope

Stefan L\"offler

arxiv:1907.06493 v1 · 2019-07-15 · 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{K7HGQOZ64XD3LE52MJ75SRHCRQ}

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	2026-07-05T04:00:00.682662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57ce683b3ee5c7b593ba627fd944e28c026236a332daa404392d079fdf1ece31

Aliases

arxiv: 1907.06493 · arxiv_version: 1907.06493v1 · doi: 10.48550/arxiv.1907.06493 · pith_short_12: K7HGQOZ64XD3 · pith_short_16: K7HGQOZ64XD3LE52 · pith_short_8: K7HGQOZ6

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/K7HGQOZ64XD3LE52MJ75SRHCRQ \
  | 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: 57ce683b3ee5c7b593ba627fd944e28c026236a332daa404392d079fdf1ece31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dfa146972e35270611f90b3a130c6e41f643865b30b95374a2a990305548ab1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-07-15T13:24:38Z",
    "title_canon_sha256": "81d5db938664d178fd1b713f8c20bd4ed184dc534686f1e8b30f6f34a06dfa58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06493",
    "kind": "arxiv",
    "version": 1
  }
}