Pith Number

pith:FJAQ4ZAZ

pith:2017:FJAQ4ZAZBKLFUANVXZKBCWJXXN

not attested not anchored not stored refs pending

PSelInv - A Distributed Memory Parallel Algorithm for Selected Inversion: the non-symmetric Case

Chao Yang, Lin Lin, Mathias Jacquelin

arxiv:1708.04539 v1 · 2017-08-14 · cs.MS · 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{FJAQ4ZAZBKLFUANVXZKBCWJXXN}

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	2026-05-18T00:37:59.050684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a410e64190a965a01b5be54115937bb70325295bd0dcb7f28ca35f1bbfcb572

Aliases

arxiv: 1708.04539 · arxiv_version: 1708.04539v1 · doi: 10.48550/arxiv.1708.04539 · pith_short_12: FJAQ4ZAZBKLF · pith_short_16: FJAQ4ZAZBKLFUANV · pith_short_8: FJAQ4ZAZ

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/FJAQ4ZAZBKLFUANVXZKBCWJXXN \
  | 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: 2a410e64190a965a01b5be54115937bb70325295bd0dcb7f28ca35f1bbfcb572

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e762e3f1e9c6f5bd98f3d118ff01ce7d13539784570f8c1203df0b1342562f",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2017-08-14T00:18:41Z",
    "title_canon_sha256": "83adc9dda462d6bc496763495411dff6ffe3e0bc9a2985a3dc29fd21aa3a374e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04539",
    "kind": "arxiv",
    "version": 1
  }
}