Pith Number

pith:KFN2UNT3

pith:2010:KFN2UNT3UM7EVKKPU7PWI6PNTH

not attested not anchored not stored refs pending

The quantum correlation between the selection of the problem and that of the solution sheds light on the mechanism of the quantum speed up

Giuseppe Castagnoli

arxiv:1005.1493 v6 · 2010-05-10 · 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{KFN2UNT3UM7EVKKPU7PWI6PNTH}

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	2026-05-18T03:23:48.674899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

515baa367ba33e4aa94fa7df6479ed99d03e899e51a2c13cba439599c574ab66

Aliases

arxiv: 1005.1493 · arxiv_version: 1005.1493v6 · doi: 10.48550/arxiv.1005.1493 · pith_short_12: KFN2UNT3UM7E · pith_short_16: KFN2UNT3UM7EVKKP · pith_short_8: KFN2UNT3

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/KFN2UNT3UM7EVKKPU7PWI6PNTH \
  | 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: 515baa367ba33e4aa94fa7df6479ed99d03e899e51a2c13cba439599c574ab66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae619e970e59129ea743284cf4e3f0b8d62682fe49bc91c477f377b5e26decfb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-05-10T11:14:24Z",
    "title_canon_sha256": "89e0359039e3a4f618637419b40ab5e7df904c57426d6737f81fdeeb2a1a0a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1493",
    "kind": "arxiv",
    "version": 6
  }
}