Pith Number

pith:PUNFO4DT

pith:2012:PUNFO4DT4QOZJKMEXMCNHKZZAO

not attested not anchored not stored refs pending

Optimally robust shortcuts to population inversion in two-level quantum systems

A. Ruschhaupt, D. Alonso, J. G. Muga, Xi Chen

arxiv:1206.1691 v1 · 2012-06-08 · 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{PUNFO4DT4QOZJKMEXMCNHKZZAO}

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	2026-05-18T03:08:38.504396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d1a577073e41d94a984bb04d3ab390386ce9622e4a06b2168796b4c2d442350

Aliases

arxiv: 1206.1691 · arxiv_version: 1206.1691v1 · doi: 10.48550/arxiv.1206.1691 · pith_short_12: PUNFO4DT4QOZ · pith_short_16: PUNFO4DT4QOZJKME · pith_short_8: PUNFO4DT

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/PUNFO4DT4QOZJKMEXMCNHKZZAO \
  | 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: 7d1a577073e41d94a984bb04d3ab390386ce9622e4a06b2168796b4c2d442350

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef23883d590b2f37edae2d1013388af1f5259520fb4af05a73fb7ab1d805898e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-06-08T08:12:53Z",
    "title_canon_sha256": "2510943fb5608785a043d276ace9b720b5e76d30426f92091b668760d89fcaf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.1691",
    "kind": "arxiv",
    "version": 1
  }
}