Pith Number

pith:ABHL7QKM

pith:2017:ABHL7QKMZEB2I5GYP26JARJPY6

not attested not anchored not stored refs pending

An adaptive fast solver for a general class of positive definite matrices via energy decomposition

D. Huang, K.C. Lam, P. Zhang, Thomas Y. Hou

arxiv:1707.08277 v3 · 2017-07-26 · math.NA · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ABHL7QKMZEB2I5GYP26JARJPY6}

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	2026-05-18T00:22:05.905368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

004ebfc14cc903a474d87ebc90452fc7956fdc901981061e252d0a68604b7c5f

Aliases

arxiv: 1707.08277 · arxiv_version: 1707.08277v3 · doi: 10.48550/arxiv.1707.08277 · pith_short_12: ABHL7QKMZEB2 · pith_short_16: ABHL7QKMZEB2I5GY · pith_short_8: ABHL7QKM

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/ABHL7QKMZEB2I5GYP26JARJPY6 \
  | 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: 004ebfc14cc903a474d87ebc90452fc7956fdc901981061e252d0a68604b7c5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6098ba54658f6d42a0e015bb8423abd598c33403790db9fcdb7a916f36ccc415",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-26T02:25:49Z",
    "title_canon_sha256": "706e659ce5e3ca375785916abed91b6fec255cefc4d583196666f13ea1b01ed8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08277",
    "kind": "arxiv",
    "version": 3
  }
}