Pith Number

pith:CUB3FCEH

pith:2019:CUB3FCEHQVBPED336IB4DVSTB3

not attested not anchored not stored refs pending

$\mathsf{QMA}$ Lower Bounds for Approximate Counting

William Kretschmer

arxiv:1902.02398 v1 · 2019-02-06 · cs.CC · 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{CUB3FCEHQVBPED336IB4DVSTB3}

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.

Cited by

1 paper in Pith

Quantum Counting in the Rydberg Blockade

Receipt and verification

First computed	2026-05-17T23:54:33.497903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1503b288878542f20f7bf203c1d6530ed15d625092749f8b8ef082218249318f

Aliases

arxiv: 1902.02398 · arxiv_version: 1902.02398v1 · doi: 10.48550/arxiv.1902.02398 · pith_short_12: CUB3FCEHQVBP · pith_short_16: CUB3FCEHQVBPED33 · pith_short_8: CUB3FCEH

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/CUB3FCEHQVBPED336IB4DVSTB3 \
  | 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: 1503b288878542f20f7bf203c1d6530ed15d625092749f8b8ef082218249318f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "493b77290baab3f8537a7ac7f3a22de26f0f79c6fdb1074ca11de3ef57cfa0a2",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-02-06T21:02:12Z",
    "title_canon_sha256": "ff3e7933bb9018a66299e4f2e483a43d132b3620e76f02d3180de2ba5c2268f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02398",
    "kind": "arxiv",
    "version": 1
  }
}