Pith Number

pith:P4IPRNVN

pith:2019:P4IPRNVN2FHPKWMZKYTDVLF5DU

not attested not anchored not stored refs pending

Approximate matrix and tensor diagonalization by unitary transformations: convergence of Jacobi-type algorithms

GIPSA-GAIA), Jianze Li (SRIBD), Konstantin Usevich (CRAN), Pierre Comon (GIPSA-CICS

arxiv:1905.12295 v3 · 2019-05-29 · math.OC · cs.NA · math.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{P4IPRNVN2FHPKWMZKYTDVLF5DU}

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	2026-07-05T01:17:37.645284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f10f8b6add14ef5599956263aacbd1d26df0848f9ed4e4d18a97e1bff7e80d3

Aliases

arxiv: 1905.12295 · arxiv_version: 1905.12295v3 · doi: 10.48550/arxiv.1905.12295 · pith_short_12: P4IPRNVN2FHP · pith_short_16: P4IPRNVN2FHPKWMZ · pith_short_8: P4IPRNVN

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/P4IPRNVN2FHPKWMZKYTDVLF5DU \
  | 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: 7f10f8b6add14ef5599956263aacbd1d26df0848f9ed4e4d18a97e1bff7e80d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e59f6138e97d442a7a669b1db44692d37c547c03a3176a91ce147a456bde59a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-29T09:51:42Z",
    "title_canon_sha256": "3361f9e2e753011ad6931d0e0aed2d25155c543865b0c28d1810dd94b5ef902d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12295",
    "kind": "arxiv",
    "version": 3
  }
}