Pith Number

pith:LPN3V44I

pith:2025:LPN3V44IIW4J5TSGKZLAISFCKH

not attested not anchored not stored refs pending

Mixed precision multigrid with smoothing based on incomplete Cholesky factorization

Erin Carson, Hartwig Anzt, Nils Kohl, Petr Vacek, Ulrich R\"ude, Yu-Hsiang Tsai

arxiv:2511.04566 v2 · 2025-11-06 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPN3V44IIW4J5TSGKZLAISFCKH}

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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

Iterative Poisson Solvers for Self-gravity with the GPU Code Astaroth

Receipt and verification

First computed	2026-07-29T01:25:31.225296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bdbbaf38845b89ece4656560448a251d1e36e5a71d7a8db98defc712ebc9e57

Aliases

arxiv: 2511.04566 · arxiv_version: 2511.04566v2 · doi: 10.48550/arxiv.2511.04566 · pith_short_12: LPN3V44IIW4J · pith_short_16: LPN3V44IIW4J5TSG · pith_short_8: LPN3V44I

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/LPN3V44IIW4J5TSGKZLAISFCKH \
  | 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: 5bdbbaf38845b89ece4656560448a251d1e36e5a71d7a8db98defc712ebc9e57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98f4cf69d940a10e0e4078ca0387ec8ffa5efe78f41de877d3af05724bdb9313",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-11-06T17:21:27Z",
    "title_canon_sha256": "cdf9e1e8486af07a8257129837b52d2100b148c6c360c93f30a55868934df842"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.04566",
    "kind": "arxiv",
    "version": 2
  }
}