Pith Number

pith:DLNW4OJM

pith:2020:DLNW4OJMDOAQWJF5X65NZXVQEG

not attested not anchored not stored refs pending

1-norm minimization and minimum-rank structured sparsity for symmetric and ah-symmetric generalized inverses: rank one and two

Jon Lee, Luze Xu, Marcia Fampa

arxiv:2010.11406 v1 · 2020-10-20 · math.OC · math.ST · stat.TH

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\usepackage{pith}
\pithnumber{DLNW4OJMDOAQWJF5X65NZXVQEG}

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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.

Cited by

1 paper in Pith

Sparse symmetric generalized inverses for sparse symmetric matrices

Receipt and verification

First computed	2026-07-05T01:45:09.759325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1adb6e392c1b810b24bdbfbadcdeb021b26c81ee697b45b499792f24dbdcb3b2

Aliases

arxiv: 2010.11406 · arxiv_version: 2010.11406v1 · doi: 10.48550/arxiv.2010.11406 · pith_short_12: DLNW4OJMDOAQ · pith_short_16: DLNW4OJMDOAQWJF5 · pith_short_8: DLNW4OJM

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/DLNW4OJMDOAQWJF5X65NZXVQEG \
  | 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: 1adb6e392c1b810b24bdbfbadcdeb021b26c81ee697b45b499792f24dbdcb3b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4be6f8e31bc5a532ce23d9cc8db52087d189a98ab1ba896faf472db2eb5c1554",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2020-10-20T19:43:06Z",
    "title_canon_sha256": "e4394b803ec888fba304948271a5b15503f5d6873720216b50248e783b95f422"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.11406",
    "kind": "arxiv",
    "version": 1
  }
}