Pith Number

pith:SZAZEA7F

pith:2009:SZAZEA7FNRPON4NDOWAMHA2RM3

not attested not anchored not stored refs pending

Fast Universal Quantum Computation with Railroad-switch Local Hamiltonians

Daniel Nagaj

arxiv:0908.4219 v3 · 2009-08-28 · 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{SZAZEA7FNRPON4NDOWAMHA2RM3}

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	2026-05-18T02:12:13.333198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96419203e56c5ee6f1a37580c3835166e28e82bc18a9714a2cf46bd2d8a77036

Aliases

arxiv: 0908.4219 · arxiv_version: 0908.4219v3 · doi: 10.48550/arxiv.0908.4219 · pith_short_12: SZAZEA7FNRPO · pith_short_16: SZAZEA7FNRPON4ND · pith_short_8: SZAZEA7F

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/SZAZEA7FNRPON4NDOWAMHA2RM3 \
  | 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: 96419203e56c5ee6f1a37580c3835166e28e82bc18a9714a2cf46bd2d8a77036

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c76c33e73e0fe2c296ad70e8ae4dda0e775f4458d294f452155627a945e5d35f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-08-28T14:35:39Z",
    "title_canon_sha256": "4d43e22a07d6d6c2a8a94ccb1d47ab929f68a44756a6038d7bdf8358419e7598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4219",
    "kind": "arxiv",
    "version": 3
  }
}