Pith Number

pith:V4YY6MET

pith:2018:V4YY6METFYPBXFKC7XS6UYW77N

not attested not anchored not stored refs pending

A faster hafnian formula for complex matrices and its benchmarking on a supercomputer

Andreas Bj\"orklund, Brajesh Gupt, Nicol\'as Quesada

arxiv:1805.12498 v3 · 2018-05-31 · cs.DS · 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{V4YY6METFYPBXFKC7XS6UYW77N}

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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

Exponentially-improved effective descriptions of physical bosonic systems

Receipt and verification

First computed	2026-05-17T23:47:15.999245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af318f30932e1e1b9542fde5ea62dffb41d648b07f12ecb7cfd558709cab9416

Aliases

arxiv: 1805.12498 · arxiv_version: 1805.12498v3 · doi: 10.48550/arxiv.1805.12498 · pith_short_12: V4YY6METFYPB · pith_short_16: V4YY6METFYPBXFKC · pith_short_8: V4YY6MET

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/V4YY6METFYPBXFKC7XS6UYW77N \
  | 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: af318f30932e1e1b9542fde5ea62dffb41d648b07f12ecb7cfd558709cab9416

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d23be446b90f303a8e374f9f5977207a63c4f40303d05228e3d250525fe9a00",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-05-31T14:44:06Z",
    "title_canon_sha256": "7404ee36ae3fc3fe07a0f1cda8b69488ee91f27d35801a0907fbf12e716b3b6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.12498",
    "kind": "arxiv",
    "version": 3
  }
}