Pith Number

pith:KYH5PZP4

pith:2020:KYH5PZP4SN4K6MA3QBZEP4ZK3U

not attested not anchored not stored refs pending

Riemannian multigrid line search for low-rank problems

Bart Vandereycken, Marco Sutti

arxiv:2005.06976 v2 · 2020-05-14 · 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{KYH5PZP4SN4K6MA3QBZEP4ZK3U}

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	2026-06-01T01:03:37.994954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

560fd7e5fc9378af301b807247f32add36dbcebf260b1b0679911e5867e9e196

Aliases

arxiv: 2005.06976 · arxiv_version: 2005.06976v2 · doi: 10.48550/arxiv.2005.06976 · pith_short_12: KYH5PZP4SN4K · pith_short_16: KYH5PZP4SN4K6MA3 · pith_short_8: KYH5PZP4

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/KYH5PZP4SN4K6MA3QBZEP4ZK3U \
  | 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: 560fd7e5fc9378af301b807247f32add36dbcebf260b1b0679911e5867e9e196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a90abf20620881bcf2a9b6e34fa4d90d373005332700971b9908fe7e37ea1f0",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-05-14T13:48:52Z",
    "title_canon_sha256": "0af620bcbb5c37ae8317ebef7f72571e85ebec5d3aa651ebf07880b8fe077058"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.06976",
    "kind": "arxiv",
    "version": 2
  }
}