Pith Number

pith:LT6VAGDF

pith:2019:LT6VAGDFJTI56LYLBNKUDR4XMS

not attested not anchored not stored refs pending

Spectral substructured two-level domain decomposition methods

Gabriele Ciaramella, Tommaso Vanzan

arxiv:1908.05537 v3 · 2019-08-15 · 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{LT6VAGDFJTI56LYLBNKUDR4XMS}

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	2026-07-05T02:33:52.808965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cfd5018654cd1df2f0b0b5541c79764bcd7b552ca3281f05ce65e4e5a60c32f

Aliases

arxiv: 1908.05537 · arxiv_version: 1908.05537v3 · doi: 10.48550/arxiv.1908.05537 · pith_short_12: LT6VAGDFJTI5 · pith_short_16: LT6VAGDFJTI56LYL · pith_short_8: LT6VAGDF

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/LT6VAGDFJTI56LYLBNKUDR4XMS \
  | 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: 5cfd5018654cd1df2f0b0b5541c79764bcd7b552ca3281f05ce65e4e5a60c32f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "653e0c54d1b010935291994d783273f2aa5c823c96da6614786e0b02020d8c51",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-15T13:49:00Z",
    "title_canon_sha256": "04ba59270d6aff87187d0cb45804c52958d6ba1f7fe5162a1c63cd62d6428f86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05537",
    "kind": "arxiv",
    "version": 3
  }
}