Pith Number

pith:5UHPVZ4G

pith:2019:5UHPVZ4GMLRPVTQ6A3UHUJRDCI

not attested not anchored not stored refs pending

Iterative Hard Thresholding for Low CP-rank Tensor Models

Anna Ma, Deanna Needell, Jing Qin, Rachel Grotheer, Shuang Li

arxiv:1908.08479 v1 · 2019-08-22 · math.NA · cs.NA · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UHPVZ4GMLRPVTQ6A3UHUJRDCI}

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	2026-07-04T23:59:13.058448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed0efae78662e2face1e06e87a2623123d2056071beb79dc49bc927e35256ee4

Aliases

arxiv: 1908.08479 · arxiv_version: 1908.08479v1 · doi: 10.48550/arxiv.1908.08479 · pith_short_12: 5UHPVZ4GMLRP · pith_short_16: 5UHPVZ4GMLRPVTQ6 · pith_short_8: 5UHPVZ4G

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/5UHPVZ4GMLRPVTQ6A3UHUJRDCI \
  | 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: ed0efae78662e2face1e06e87a2623123d2056071beb79dc49bc927e35256ee4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8643b96ac09fbb319e350e1936d2ba7a0684b73f6969ae046a6d27b4e691b485",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-22T16:20:38Z",
    "title_canon_sha256": "f7184b281144057b7b3571e870ea11363516d554feac99eb691666f6eb45a1df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08479",
    "kind": "arxiv",
    "version": 1
  }
}