Pith Number

pith:HURELL5U

pith:2026:HURELL5UND3YDG4A66B5NLEWVG

not attested not anchored not stored refs pending

An efficient quantum Hadamard product algorithm for functions

Hirofumi Nishi, Tomofumi Zushi, Xinchi Huang, Yu-ichiro Matsushita

arxiv:2606.03612 v1 · 2026-06-02 · 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{HURELL5UND3YDG4A66B5NLEWVG}

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	2026-06-03T01:06:02.366452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d2245afb468f7819b80f783d6ac96a9acae978c5b7917b18af00af2a147ad16

Aliases

arxiv: 2606.03612 · arxiv_version: 2606.03612v1 · doi: 10.48550/arxiv.2606.03612 · pith_short_12: HURELL5UND3Y · pith_short_16: HURELL5UND3YDG4A · pith_short_8: HURELL5U

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/HURELL5UND3YDG4A66B5NLEWVG \
  | 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: 3d2245afb468f7819b80f783d6ac96a9acae978c5b7917b18af00af2a147ad16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bb0d452b4db677b92237348d157707bde47780d10c8345514e940ab0646f7d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-02T13:13:47Z",
    "title_canon_sha256": "726b242d6b63799ab49204e787085c81b0aca251a41ca591f20590faef516e03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.03612",
    "kind": "arxiv",
    "version": 1
  }
}