Pith Number

pith:I7ABPR34

pith:2019:I7ABPR34SFVWTHCYYLQWF3E57X

not attested not anchored not stored refs pending

Color image recovery using low-rank quaternion matrix completion algorithm

Jifei Miao, Kit Ian Kou

arxiv:1909.06567 v1 · 2019-09-14 · math.NA · cs.NA · 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{I7ABPR34SFVWTHCYYLQWF3E57X}

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	2026-07-05T00:04:47.516647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47c017c77c916b699c58c2e162ec9dfdcfd3cfeb6b4da84693e47ff5ad10cefd

Aliases

arxiv: 1909.06567 · arxiv_version: 1909.06567v1 · doi: 10.48550/arxiv.1909.06567 · pith_short_12: I7ABPR34SFVW · pith_short_16: I7ABPR34SFVWTHCY · pith_short_8: I7ABPR34

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/I7ABPR34SFVWTHCYYLQWF3E57X \
  | 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: 47c017c77c916b699c58c2e162ec9dfdcfd3cfeb6b4da84693e47ff5ad10cefd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cbaa4525e8b665cbe83acf07f539d1f60700a26ecdfd32b3765fc556d7effd8",
    "cross_cats_sorted": [
      "cs.NA",
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-09-14T09:30:50Z",
    "title_canon_sha256": "40aca952fe1f59c9a441927d8141cf38367700588148c274eeb38d3cb01456b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06567",
    "kind": "arxiv",
    "version": 1
  }
}