Pith Number

pith:IBKTID4U

pith:2021:IBKTID4UOXQKQJ5A326VRVZT3B

not attested not anchored not stored refs pending

Low Rank Quaternion Matrix Recovery via Logarithmic Approximation

Jifei Miao, Kit Ian Kou, Liqiao Yang

arxiv:2107.01380 v1 · 2021-07-03 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IBKTID4UOXQKQJ5A326VRVZT3B}

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	2026-07-05T02:54:42.406191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4055340f9475e0a827a0debd58d733d86d89c7fbeb1896aee5445d0d58766a3f

Aliases

arxiv: 2107.01380 · arxiv_version: 2107.01380v1 · doi: 10.48550/arxiv.2107.01380 · pith_short_12: IBKTID4UOXQK · pith_short_16: IBKTID4UOXQKQJ5A · pith_short_8: IBKTID4U

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/IBKTID4UOXQKQJ5A326VRVZT3B \
  | 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: 4055340f9475e0a827a0debd58d733d86d89c7fbeb1896aee5445d0d58766a3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ab1a219921a11c0e0cb3e51bff8895f2f77c39edd373e991282d2b197a6dc99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-07-03T08:40:01Z",
    "title_canon_sha256": "e44d807a7ed5b6c383719ac9a5ffaec23cbd7a5dd2f2c8eda0f4f6af9f98fc28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.01380",
    "kind": "arxiv",
    "version": 1
  }
}