Pith Number

pith:LDEPHDGU

pith:2017:LDEPHDGUF5TP4THFWQZGBCV73I

not attested not anchored not stored refs pending

Numerically Stable Variants of the Communication-hiding Pipelined Conjugate Gradients Algorithm for the Parallel Solution of Large Scale Symmetric Linear Systems

Siegfried Cools, Wim Vanroose

arxiv:1706.05988 v2 · 2017-06-19 · 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{LDEPHDGUF5TP4THFWQZGBCV73I}

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	2026-05-18T00:06:26.540337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58c8f38cd42f66fe4ce5b432608abfda20a7bc63f2addcdd5ad9f10639159de4

Aliases

arxiv: 1706.05988 · arxiv_version: 1706.05988v2 · doi: 10.48550/arxiv.1706.05988 · pith_short_12: LDEPHDGUF5TP · pith_short_16: LDEPHDGUF5TP4THF · pith_short_8: LDEPHDGU

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/LDEPHDGUF5TP4THFWQZGBCV73I \
  | 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: 58c8f38cd42f66fe4ce5b432608abfda20a7bc63f2addcdd5ad9f10639159de4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "423daef95a421b36fda7f2cb46eab3a12141dceb17fe9f874d6eb81b4e76e93f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-06-19T14:45:00Z",
    "title_canon_sha256": "108e7d65d2ddfc05ab9b0fed014d93963e62b02bf27ea939d1ed744da45044d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.05988",
    "kind": "arxiv",
    "version": 2
  }
}