Pith Number

pith:NHYPNHN5

pith:2011:NHYPNHN5RNTJGLOG66GFYS4X2Z

not attested not anchored not stored refs pending

Entanglement Concentration with Quantum Non Demolition Hamiltonians

Natalia Korolkova, Richard Tatham

arxiv:1111.4557 v1 · 2011-11-19 · 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{NHYPNHN5RNTJGLOG66GFYS4X2Z}

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	2026-05-18T04:08:03.106731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69f0f69dbd8b66932dc6f78c5c4b97d667ce80733171b26fa68e7dd66e085504

Aliases

arxiv: 1111.4557 · arxiv_version: 1111.4557v1 · doi: 10.48550/arxiv.1111.4557 · pith_short_12: NHYPNHN5RNTJ · pith_short_16: NHYPNHN5RNTJGLOG · pith_short_8: NHYPNHN5

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/NHYPNHN5RNTJGLOG66GFYS4X2Z \
  | 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: 69f0f69dbd8b66932dc6f78c5c4b97d667ce80733171b26fa68e7dd66e085504

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e346482d6de5d9f331e2660e60e435c1d5aff2dc4b96457bdb656bcae885568",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-11-19T14:00:28Z",
    "title_canon_sha256": "bf5dd28c128566e372b7961becd0e437e48f4f191da1043ae948599386284b36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4557",
    "kind": "arxiv",
    "version": 1
  }
}