Pith Number

pith:NRNI4Y23

pith:2020:NRNI4Y23XV3TXXBBVLNF2FDQJG

not attested not anchored not stored refs pending

Quantifying quantum speedups: improved classical simulation from tighter magic monotones

Bartosz Regula, Earl T. Campbell, Hakop Pashayan, James R. Seddon, Yingkai Ouyang

arxiv:2002.06181 v4 · 2020-02-14 · 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{NRNI4Y23XV3TXXBBVLNF2FDQJG}

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	2026-07-05T02:24:48.788914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c5a8e635bbd773bdc21aada5d147049bb33ed5c8a9be4d66933e1048475ca52

Aliases

arxiv: 2002.06181 · arxiv_version: 2002.06181v4 · doi: 10.48550/arxiv.2002.06181 · pith_short_12: NRNI4Y23XV3T · pith_short_16: NRNI4Y23XV3TXXBB · pith_short_8: NRNI4Y23

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/NRNI4Y23XV3TXXBBVLNF2FDQJG \
  | 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: 6c5a8e635bbd773bdc21aada5d147049bb33ed5c8a9be4d66933e1048475ca52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28ab64c977ae61c599e39222442a26e1299030c1b6748e8895ee58a09dd26e1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-02-14T18:57:10Z",
    "title_canon_sha256": "0b1244e3d06f636ece236e1364fcac224ace783f9071c1cff7de0cac5606dbec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.06181",
    "kind": "arxiv",
    "version": 4
  }
}