Pith Number

pith:7NH6XB2Y

pith:2019:7NH6XB2YDF2BT7YTJQQ5ITAFQF

not attested not anchored not stored refs pending

Quantum tensor singular value decomposition with applications to recommendation systems

Guofeng Zhang, Joseph Heung-wing Joseph Lee, Lejia Gu, Xiaoqiang Wang

arxiv:1910.01262 v2 · 2019-10-03 · quant-ph · cs.LG · cs.SY · eess.SY · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NH6XB2YDF2BT7YTJQQ5ITAFQF}

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 Higher Order Singular Value Decomposition

Receipt and verification

First computed	2026-07-05T00:37:48.186438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb4feb8758197419ff134c21d44c05814c170d9fbe476d4d88ea1ecb9a98949d

Aliases

arxiv: 1910.01262 · arxiv_version: 1910.01262v2 · doi: 10.48550/arxiv.1910.01262 · pith_short_12: 7NH6XB2YDF2B · pith_short_16: 7NH6XB2YDF2BT7YT · pith_short_8: 7NH6XB2Y

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/7NH6XB2YDF2BT7YTJQQ5ITAFQF \
  | 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: fb4feb8758197419ff134c21d44c05814c170d9fbe476d4d88ea1ecb9a98949d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e668e3f4986ac30601f9e3abbcca10189037eaf88ff9ac361837e12fb6f775d",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SY",
      "eess.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-10-03T00:45:27Z",
    "title_canon_sha256": "aa65f8ee3b4896bfeff803c2cae25d4ea857804dedf73674ca7dfab5593573d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.01262",
    "kind": "arxiv",
    "version": 2
  }
}