Pith Number

pith:KCYM7M3V

pith:2019:KCYM7M3VHDG6246UGBGPKVXRN4

not attested not anchored not stored refs pending

Finding Hadamard matrices by a quantum annealing machine

Andriyan Bayu Suksmono, Yuichiro Minato

arxiv:1902.07890 v3 · 2019-02-21 · 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{KCYM7M3VHDG6246UGBGPKVXRN4}

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	2026-05-17T23:50:19.225501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50b0cfb37538cded73d4304cf556f16f1de8c0bb4385a20880b44237457dbb5c

Aliases

arxiv: 1902.07890 · arxiv_version: 1902.07890v3 · doi: 10.48550/arxiv.1902.07890 · pith_short_12: KCYM7M3VHDG6 · pith_short_16: KCYM7M3VHDG6246U · pith_short_8: KCYM7M3V

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/KCYM7M3VHDG6246UGBGPKVXRN4 \
  | 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: 50b0cfb37538cded73d4304cf556f16f1de8c0bb4385a20880b44237457dbb5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d312548fa1aa948094f56c442d0cec201c226d0d64c4909e79d9eb3e7cd370f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-02-21T07:13:34Z",
    "title_canon_sha256": "c16128005d1fe755d05f7bf68d55d8312a4e7b7cc5490cd2bb9133b20f856006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07890",
    "kind": "arxiv",
    "version": 3
  }
}