Pith Number

pith:WWXL6OV2

pith:2025:WWXL6OV2P3OXEOUTRQBLKMKZMG

not attested not anchored not stored refs pending

Fast and Provable Tensor-Train Format Tensor Completion via Precondtioned Riemannian Gradient Descent

Fengmiao Bian, Jian-Feng Cai, Xiaoqun Zhang, Yuanwei Zhang

arxiv:2501.13385 v1 · 2025-01-23 · cs.LG · cs.NA · math.NA · 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{WWXL6OV2P3OXEOUTRQBLKMKZMG}

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

Online Riemannian Gradient Descent for Quantum State Tomography with Matrix Product Operators

Receipt and verification

First computed	2026-07-05T10:04:27.695618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5aebf3aba7edd723a938c02b5315961863bb0bc2c77ad4b760292d144ae822a

Aliases

arxiv: 2501.13385 · arxiv_version: 2501.13385v1 · doi: 10.48550/arxiv.2501.13385 · pith_short_12: WWXL6OV2P3OX · pith_short_16: WWXL6OV2P3OXEOUT · pith_short_8: WWXL6OV2

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/WWXL6OV2P3OXEOUTRQBLKMKZMG \
  | 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: b5aebf3aba7edd723a938c02b5315961863bb0bc2c77ad4b760292d144ae822a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f363cf04ae11450aa993ee3069fddc1da59ed771c7e24486f3cbb036a59dbad",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-23T05:03:50Z",
    "title_canon_sha256": "6c736bd6d40386937c1062a43b4ff11bf0979e88e83a1cda1c02390ea9cfb6fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.13385",
    "kind": "arxiv",
    "version": 1
  }
}