Pith Number

pith:DCYV2XQB

pith:2015:DCYV2XQBVGCHXVRWAA5VXKQQ2Z

not attested not anchored not stored refs pending

Scalable Task-Based Algorithm for Multiplication of Block-Rank-Sparse Matrices

Cannada A. Lewis, Edward F. Valeev, Justus A. Calvin

arxiv:1509.00309 v2 · 2015-09-01 · 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{DCYV2XQBVGCHXVRWAA5VXKQQ2Z}

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	2026-05-18T01:30:34.063821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18b15d5e01a9847bd636003b5baa10d64af3dc41253d704f98f9f36959e3f4d8

Aliases

arxiv: 1509.00309 · arxiv_version: 1509.00309v2 · doi: 10.48550/arxiv.1509.00309 · pith_short_12: DCYV2XQBVGCH · pith_short_16: DCYV2XQBVGCHXVRW · pith_short_8: DCYV2XQB

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/DCYV2XQBVGCHXVRWAA5VXKQQ2Z \
  | 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: 18b15d5e01a9847bd636003b5baa10d64af3dc41253d704f98f9f36959e3f4d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc9f526b13bdad92523f83c780898b433226eeeb8692f7e57ee294e0db605857",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2015-09-01T14:22:38Z",
    "title_canon_sha256": "c64ef155749e051bd17b7051bce906db9d3524589dab5fd28d14e196f9a6a3ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00309",
    "kind": "arxiv",
    "version": 2
  }
}