Pith Number

pith:DQTS4CT3

pith:2018:DQTS4CT3QMTANBLMHL32LPIBJN

not attested not anchored not stored refs pending

A Fast Hierarchically Preconditioned Eigensolver Based On Multiresolution Matrix Decomposition

De Huang, Ka Chun Lam, Thomas Y. Hou, Ziyun Zhang

arxiv:1804.03415 v2 · 2018-04-10 · math.NA · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQTS4CT3QMTANBLMHL32LPIBJN}

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	2026-05-18T00:12:13.643241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c272e0a7b832606856c3af7a5bd014b49fad88352046a1a42fb341598f2cd18

Aliases

arxiv: 1804.03415 · arxiv_version: 1804.03415v2 · doi: 10.48550/arxiv.1804.03415 · pith_short_12: DQTS4CT3QMTA · pith_short_16: DQTS4CT3QMTANBLM · pith_short_8: DQTS4CT3

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/DQTS4CT3QMTANBLMHL32LPIBJN \
  | 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: 1c272e0a7b832606856c3af7a5bd014b49fad88352046a1a42fb341598f2cd18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bde39d055ec1cff8d8fcb6356b41b65dc36b3447a3a6c9dba4088e5e4d1ce30",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-10T09:30:37Z",
    "title_canon_sha256": "8dc6aa588f2d7d9a2a379bcc2981ed345ca03f8cfb7f30ff3007363628987e65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03415",
    "kind": "arxiv",
    "version": 2
  }
}