Pith Number

pith:AZZPNEJS

pith:2019:AZZPNEJSMOAH6YXNPTQAJ46JCL

not attested not anchored not stored refs pending

Faster Tensor Train Decomposition for Sparse Data

Kim Batselier, Lingjie Li, Wenjian Yu

arxiv:1908.02721 v2 · 2019-08-07 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AZZPNEJSMOAH6YXNPTQAJ46JCL}

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	2026-07-05T01:48:06.264272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0672f6913263807f62ed7ce004f3c912d53819d59481bb081dc25009856993d5

Aliases

arxiv: 1908.02721 · arxiv_version: 1908.02721v2 · doi: 10.48550/arxiv.1908.02721 · pith_short_12: AZZPNEJSMOAH · pith_short_16: AZZPNEJSMOAH6YXN · pith_short_8: AZZPNEJS

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/AZZPNEJSMOAH6YXNPTQAJ46JCL \
  | 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: 0672f6913263807f62ed7ce004f3c912d53819d59481bb081dc25009856993d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "755b8655ce92e66660f1ca714bdbf4ca552e12bb6a0142a68e0465e4215cce19",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-07T16:49:58Z",
    "title_canon_sha256": "534e100e40a0d35bd9f27f24429d16b5d5abf8839ad0fd526701a5eaf2f72322"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02721",
    "kind": "arxiv",
    "version": 2
  }
}