Pith Number

pith:SAM5X3YE

pith:2021:SAM5X3YEZJMH4C2HGLR5NNB7Y4

not attested not anchored not stored refs pending

Circuit-Depth Reduction of Unitary-Coupled-Cluster Ansatz by Energy Sorting

Changsu Cao, Dingshun Lv, Man-Hong Yung, Xusheng Xu, Yi Fan, Zhenyu Li

arxiv:2106.15210 v2 · 2021-06-29 · 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{SAM5X3YEZJMH4C2HGLR5NNB7Y4}

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	2026-07-05T06:00:54.424765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9019dbef04ca587e0b4732e3d6b43fc7027759e839e1264746b100bc6b43caaf

Aliases

arxiv: 2106.15210 · arxiv_version: 2106.15210v2 · doi: 10.48550/arxiv.2106.15210 · pith_short_12: SAM5X3YEZJMH · pith_short_16: SAM5X3YEZJMH4C2H · pith_short_8: SAM5X3YE

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/SAM5X3YEZJMH4C2HGLR5NNB7Y4 \
  | 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: 9019dbef04ca587e0b4732e3d6b43fc7027759e839e1264746b100bc6b43caaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "878e9c5fb923b6683bb18c4378d744578ed16bad7c58c61b33323a77a4c46d37",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-06-29T09:51:19Z",
    "title_canon_sha256": "90086f45dfe166bae1cb49f11e48ce66e2e692a1a83d54b25e874f504090035f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.15210",
    "kind": "arxiv",
    "version": 2
  }
}