Pith Number

pith:IMD57G6F

pith:2024:IMD57G6FXOJLB4VSYJ4ZQQRI6R

not attested not anchored not stored refs pending

Near-optimal hierarchical matrix approximation from matrix-vector products

Cameron Musco, Christopher Musco, David Persson, Diana Halikias, Feyza Duman Keles, Tyler Chen

arxiv:2407.04686 v2 · 2024-07-05 · cs.DS · cs.NA · math.NA

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\usepackage{pith}
\pithnumber{IMD57G6FXOJLB4VSYJ4ZQQRI6R}

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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

Randomized algorithms for streaming low-rank approximation in tree tensor network format

Receipt and verification

First computed	2026-07-05T09:25:20.109198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4307df9bc5bb92b0f2b2c279984228f46f4909518dd6cf6adcec8256861ec88c

Aliases

arxiv: 2407.04686 · arxiv_version: 2407.04686v2 · doi: 10.48550/arxiv.2407.04686 · pith_short_12: IMD57G6FXOJL · pith_short_16: IMD57G6FXOJLB4VS · pith_short_8: IMD57G6F

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/IMD57G6FXOJLB4VSYJ4ZQQRI6R \
  | 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: 4307df9bc5bb92b0f2b2c279984228f46f4909518dd6cf6adcec8256861ec88c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d714af61ea6711d0d0894eeec53d97c52223f4a1d280daf90837f5496b9e271",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2024-07-05T17:49:15Z",
    "title_canon_sha256": "56b13c734dedb0ee4cd02e2eedbaeaf3c318fdca415b6ba06b5780040cb0173a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.04686",
    "kind": "arxiv",
    "version": 2
  }
}