Pith Number

pith:3R5QLPHL

pith:2014:3R5QLPHLIFK5G3ZORLOVM4T2RS

not attested not anchored not stored refs pending

A Multigrid Method Based On Shifted-Inverse Power Technique for Eigenvalue Problems

Hehu Xie, Hongtao Chen, Yu Li, Yunhui He

arxiv:1401.5378 v3 · 2014-01-21 · 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{3R5QLPHLIFK5G3ZORLOVM4T2RS}

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	2026-05-18T02:39:23.888797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc7b05bceb4155d36f2e8add56727a8cb747bf2458ec7771735fb4040431e00f

Aliases

arxiv: 1401.5378 · arxiv_version: 1401.5378v3 · doi: 10.48550/arxiv.1401.5378 · pith_short_12: 3R5QLPHLIFK5 · pith_short_16: 3R5QLPHLIFK5G3ZO · pith_short_8: 3R5QLPHL

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/3R5QLPHLIFK5G3ZORLOVM4T2RS \
  | 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: dc7b05bceb4155d36f2e8add56727a8cb747bf2458ec7771735fb4040431e00f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a196078ef2647d91b5a6d36f14df253e80889a54d1af4ae5c41096a347cb3298",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-01-21T16:38:33Z",
    "title_canon_sha256": "2aa52df36e7f802296001f94efe9d8fdab12188b3edd43200a527138862417d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5378",
    "kind": "arxiv",
    "version": 3
  }
}