Pith Number

pith:EKJGUFE7

pith:2021:EKJGUFE7AYKQLVLOLISF3LKVBB

not attested not anchored not stored refs pending

Parallel Algorithms for Adding a Collection of Sparse Matrices

Ariful Azad, Aydin Bulu\c{c}, Guttu Sai Abhishek, Md Taufique Hussain

arxiv:2112.10223 v1 · 2021-12-19 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKJGUFE7AYKQLVLOLISF3LKVBB}

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	2026-07-05T03:42:12.583593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22926a149f061505d56e5a245dad55085a6c8e0c748733ed188d8905f3814229

Aliases

arxiv: 2112.10223 · arxiv_version: 2112.10223v1 · doi: 10.48550/arxiv.2112.10223 · pith_short_12: EKJGUFE7AYKQ · pith_short_16: EKJGUFE7AYKQLVLO · pith_short_8: EKJGUFE7

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/EKJGUFE7AYKQLVLOLISF3LKVBB \
  | 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: 22926a149f061505d56e5a245dad55085a6c8e0c748733ed188d8905f3814229

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebe988fa5f5d7ae3068e400930ad0815fe8e9bcc3a7d4218672c743b1d26c337",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2021-12-19T18:52:20Z",
    "title_canon_sha256": "124c7197e82434bccd6d50f3d4584eb16a55144d64cc5417fc7c82bdcf1993cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.10223",
    "kind": "arxiv",
    "version": 1
  }
}