Pith Number

pith:M4KZ7EEC

pith:2018:M4KZ7EECX6PFUMSBMY7G4WCG7W

not attested not anchored not stored refs pending

Optimal Weighted Low-rank Matrix Recovery with Subspace Prior Information

Arash Amini, Farzan Haddadi, Sajad Daei

arxiv:1809.10356 v2 · 2018-09-27 · cs.IT · math.IT

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

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	2026-05-17T23:47:36.059012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67159f9082bf9e5a3241663e6e5846fdb944c12d2da49d929c997cddfd6be833

Aliases

arxiv: 1809.10356 · arxiv_version: 1809.10356v2 · doi: 10.48550/arxiv.1809.10356 · pith_short_12: M4KZ7EECX6PF · pith_short_16: M4KZ7EECX6PFUMSB · pith_short_8: M4KZ7EEC

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/M4KZ7EECX6PFUMSBMY7G4WCG7W \
  | 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: 67159f9082bf9e5a3241663e6e5846fdb944c12d2da49d929c997cddfd6be833

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e438a488f02a244cf68c4b15b9119efcef6924a2476296e1dac3d06e3494c6b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-27T05:57:14Z",
    "title_canon_sha256": "85ce2b8181fc123c2019598a04beddc9621fa915b6c2e5042dbe321ea0a8f6fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10356",
    "kind": "arxiv",
    "version": 2
  }
}