Pith Number

pith:QYYAKOQN

pith:2016:QYYAKOQN7W5FD5C6OVAAIHXJCL

not attested not anchored not stored refs pending

Weighted Matrix Completion and Recovery with Prior Subspace Information

Armin Eftekhari, Dehui Yang, Michael B. Wakin

arxiv:1612.01720 v3 · 2016-12-06 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYYAKOQN7W5FD5C6OVAAIHXJCL}

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	2026-05-18T00:21:29.029516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8630053a0dfdba51f45e7540041ee912e08b3e2347efb862305ad4232168e117

Aliases

arxiv: 1612.01720 · arxiv_version: 1612.01720v3 · doi: 10.48550/arxiv.1612.01720 · pith_short_12: QYYAKOQN7W5F · pith_short_16: QYYAKOQN7W5FD5C6 · pith_short_8: QYYAKOQN

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/QYYAKOQN7W5FD5C6OVAAIHXJCL \
  | 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: 8630053a0dfdba51f45e7540041ee912e08b3e2347efb862305ad4232168e117

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d443a99afbd3e19d0acb8860568284b4899d3bff62112a95320ee8a7a7f2913",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-12-06T09:35:07Z",
    "title_canon_sha256": "7ba957a9c5266b0453844b26ec57da3b2dcf25c06991d8b0fd2aa65f1c5b8329"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01720",
    "kind": "arxiv",
    "version": 3
  }
}