Pith Number

pith:BBHH4DLJ

pith:2009:BBHH4DLJD54HLV7TKTVGHDDEPW

not attested not anchored not stored refs pending

Efficient Gaussian Elimination on a 2D SIMD Array of Processors without Column Broadcasts

Mugurel Ionut Andreica

arxiv:0912.2047 v1 · 2009-12-10 · cs.DC · cs.DS · cs.NA · 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{BBHH4DLJD54HLV7TKTVGHDDEPW}

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	2026-06-03T23:06:31.330835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

084e7e0d691f7875d7f354ea638c647da45605dbe6c20dfebd353ef211329ba9

Aliases

arxiv: 0912.2047 · arxiv_version: 0912.2047v1 · doi: 10.48550/arxiv.0912.2047 · pith_short_12: BBHH4DLJD54H · pith_short_16: BBHH4DLJD54HLV7T · pith_short_8: BBHH4DLJ

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/BBHH4DLJD54HLV7TKTVGHDDEPW \
  | 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: 084e7e0d691f7875d7f354ea638c647da45605dbe6c20dfebd353ef211329ba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4b3e5cc7384743fb2be0e6cba69d0ab1d1dceddbb696bd6514d0d05c556840c",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2009-12-10T16:50:05Z",
    "title_canon_sha256": "eb94ff2236902864ce98be5c1087b5238b1f1937d8572f8b6c12455049004ce6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2047",
    "kind": "arxiv",
    "version": 1
  }
}