Pith Number

pith:V2KZDFCP

pith:2018:V2KZDFCPL5GZPZBJH7VR6T5P6G

not attested not anchored not stored refs pending

Preconditioned Iterative Methods for Diffusion Problems with High-Contrast Inclusions

Vasiliy Kramarenko, Yuliya Gorb, Yuri Kuznetsov

arxiv:1808.00627 v1 · 2018-08-02 · math.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{V2KZDFCPL5GZPZBJH7VR6T5P6G}

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	2026-05-18T00:09:04.703516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae9591944f5f4d97e4293feb1f4faff187ec53802f4a3ecb903ed7fd59e28669

Aliases

arxiv: 1808.00627 · arxiv_version: 1808.00627v1 · doi: 10.48550/arxiv.1808.00627 · pith_short_12: V2KZDFCPL5GZ · pith_short_16: V2KZDFCPL5GZPZBJ · pith_short_8: V2KZDFCP

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/V2KZDFCPL5GZPZBJH7VR6T5P6G \
  | 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: ae9591944f5f4d97e4293feb1f4faff187ec53802f4a3ecb903ed7fd59e28669

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8efdbd6d8a8b2973a676e8549d9d9b499579c7b0e2971eb1df5b7eae1745df9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-02T01:53:08Z",
    "title_canon_sha256": "4f0a019e2122fb268f30982d51b6a4f5f14bb40a4ad188adeffe595eaf0af10f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00627",
    "kind": "arxiv",
    "version": 1
  }
}