Pith Number

pith:KBDBYN4C

pith:2014:KBDBYN4CNIWWWVB3DRXBDLQG7U

not attested not anchored not stored refs pending

Some results on the generalized inverse of tensors and idempotent tensors

Baodong Zheng, Changjiang Bu, Lizhu Sun, Yimin Wei

arxiv:1412.7430 v1 · 2014-12-23 · math.NA · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KBDBYN4CNIWWWVB3DRXBDLQG7U}

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	2026-05-18T02:30:38.907508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50461c37826a2d6b543b1c6e11ae06fd38138c231728b75ed5560b24733c7e41

Aliases

arxiv: 1412.7430 · arxiv_version: 1412.7430v1 · doi: 10.48550/arxiv.1412.7430 · pith_short_12: KBDBYN4CNIWW · pith_short_16: KBDBYN4CNIWWWVB3 · pith_short_8: KBDBYN4C

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/KBDBYN4CNIWWWVB3DRXBDLQG7U \
  | 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: 50461c37826a2d6b543b1c6e11ae06fd38138c231728b75ed5560b24733c7e41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "161c58d18c08864966de8f17ceee791b1f44ebca5834b8b2f472f2e23d54a786",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-12-23T16:19:06Z",
    "title_canon_sha256": "2ef931cf3955a1e86204f43e96296eefb0e7201108993f541eba90fc3345a0b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7430",
    "kind": "arxiv",
    "version": 1
  }
}