Pith Number

pith:MURG53EV

pith:2017:MURG53EVK6AOWDIM64KCHZ6BQV

not attested not anchored not stored refs pending

A distributed-memory hierarchical solver for general sparse linear systems

Chao Chen, Eric Darve, Erik G. Boman, Hadi Pouransari, Sivasankaran Rajamanickam

arxiv:1712.07297 v1 · 2017-12-20 · math.NA · 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{MURG53EVK6AOWDIM64KCHZ6BQV}

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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	2026-05-18T00:27:34.927763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65226eec955780eb0d0cf71423e7c1856b367dcb471f87b5143c1d01e2d80696

Aliases

arxiv: 1712.07297 · arxiv_version: 1712.07297v1 · doi: 10.48550/arxiv.1712.07297 · pith_short_12: MURG53EVK6AO · pith_short_16: MURG53EVK6AOWDIM · pith_short_8: MURG53EV

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/MURG53EVK6AOWDIM64KCHZ6BQV \
  | 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: 65226eec955780eb0d0cf71423e7c1856b367dcb471f87b5143c1d01e2d80696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26bc925ec37dd3d2471d7cf45dab82f98a071da9724ee2d14e17aaeffc1045b0",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-20T02:54:20Z",
    "title_canon_sha256": "32b4042e21772a514cdf07e7daa4c4fddc16e108ab52a70f36492c2a66a759ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07297",
    "kind": "arxiv",
    "version": 1
  }
}