Pith Number

pith:U4AKOERF

pith:2019:U4AKOERFY54EPPIDK75Y54TDII

not attested not anchored not stored refs pending

A Recursive Algebraic Coloring Technique for Hardware-Efficient Symmetric Sparse Matrix-Vector Multiplication

Achim Basermann, Alan R. Bishop, Christie L. Alappat, Georg Hager, Gerhard Wellein, Holger Fehske, Jonas Thies, Olaf Schenk

arxiv:1907.06487 v1 · 2019-07-15 · cs.DC · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4AKOERFY54EPPIDK75Y54TDII}

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	2026-07-05T01:38:33.166253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a700a71225c77847bd0357fb8ef263422c60483a1781a9dcd50a05d0b5c94f3a

Aliases

arxiv: 1907.06487 · arxiv_version: 1907.06487v1 · doi: 10.48550/arxiv.1907.06487 · pith_short_12: U4AKOERFY54E · pith_short_16: U4AKOERFY54EPPID · pith_short_8: U4AKOERF

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/U4AKOERFY54EPPIDK75Y54TDII \
  | 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: a700a71225c77847bd0357fb8ef263422c60483a1781a9dcd50a05d0b5c94f3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a542477d8d29739d08a3b2083b413b597e34a0e5a8239b40620b5bfb1d93255f",
    "cross_cats_sorted": [
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-07-15T13:15:35Z",
    "title_canon_sha256": "3486b140b3947f50d2c195d0415812b3d9f0401b206c6ff957c8826086ba2c43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06487",
    "kind": "arxiv",
    "version": 1
  }
}