Pith Number

pith:XMCSSPUZ

pith:2017:XMCSSPUZRQHQXZ7AUGL6VKV7SF

not attested not anchored not stored refs pending

Harmonic Mean Iteratively Reweighted Least Squares for Low-Rank Matrix Recovery

Christian K\"ummerle, Juliane Sigl

arxiv:1703.05038 v2 · 2017-03-15 · math.NA · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMCSSPUZRQHQXZ7AUGL6VKV7SF}

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	2026-05-18T00:22:29.442038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb05293e998c0f0be7e0a197eaaabf9174cbe45cb2a2279574d8c35d26305792

Aliases

arxiv: 1703.05038 · arxiv_version: 1703.05038v2 · doi: 10.48550/arxiv.1703.05038 · pith_short_12: XMCSSPUZRQHQ · pith_short_16: XMCSSPUZRQHQXZ7A · pith_short_8: XMCSSPUZ

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/XMCSSPUZRQHQXZ7AUGL6VKV7SF \
  | 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: bb05293e998c0f0be7e0a197eaaabf9174cbe45cb2a2279574d8c35d26305792

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ea92241178d00f8c7b077bad804606ff7c36ebeefc85fb1d0e5629f84c57cd4",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-15T09:26:52Z",
    "title_canon_sha256": "2717fc2a54882ad8e65c4960c88fd52a14cdc99cfcea6a647eea0226f0d95c5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05038",
    "kind": "arxiv",
    "version": 2
  }
}