Pith Number

pith:7RCQNQGB

pith:2021:7RCQNQGB7WVXGWNOOKTE4H6OW7

not attested not anchored not stored refs pending

Parallel algorithms for computing the tensor-train decomposition

Alex Townsend, Maximilian Ruth, Tianyi Shi

arxiv:2111.10448 v1 · 2021-11-19 · 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{7RCQNQGB7WVXGWNOOKTE4H6OW7}

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	2026-07-05T03:33:52.880164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4506c0c1fdab7359ae72a64e1fceb7e0d07e6013026e71540964456ce0e5c7

Aliases

arxiv: 2111.10448 · arxiv_version: 2111.10448v1 · doi: 10.48550/arxiv.2111.10448 · pith_short_12: 7RCQNQGB7WVX · pith_short_16: 7RCQNQGB7WVXGWNO · pith_short_8: 7RCQNQGB

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/7RCQNQGB7WVXGWNOOKTE4H6OW7 \
  | 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: fc4506c0c1fdab7359ae72a64e1fceb7e0d07e6013026e71540964456ce0e5c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "021a1a10f56f7b55c55dcf31b81404fd301a9105a509e4fc2d01889e5c518c82",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-11-19T21:45:11Z",
    "title_canon_sha256": "0d01fe42d988efb62a67cc80e652b0b39f20b56afd6279894b33298e8a0af506"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.10448",
    "kind": "arxiv",
    "version": 1
  }
}