Pith Number

pith:CFRVS7DL

pith:2013:CFRVS7DL7YZ3JSLZU5IPFMM3RU

not attested not anchored not stored refs pending

Communication lower bounds and optimal algorithms for programs that reference arrays -- Part 1

James Demmel, Katherine Yelick, Michael Christ, Nicholas Knight, Thomas Scanlon

arxiv:1308.0068 v1 · 2013-08-01 · math.CA · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFRVS7DL7YZ3JSLZU5IPFMM3RU}

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	2026-05-18T03:16:59.302365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1163597c6bfe33b4c979a750f2b19b8d2717f7a67de39856d735cd53ea59c72b

Aliases

arxiv: 1308.0068 · arxiv_version: 1308.0068v1 · doi: 10.48550/arxiv.1308.0068 · pith_short_12: CFRVS7DL7YZ3 · pith_short_16: CFRVS7DL7YZ3JSLZ · pith_short_8: CFRVS7DL

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/CFRVS7DL7YZ3JSLZU5IPFMM3RU \
  | 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: 1163597c6bfe33b4c979a750f2b19b8d2717f7a67de39856d735cd53ea59c72b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1c6c01d20cc30142fbc547d89d72b8643b8b311b3cdc6cc6fea578d358f1a60",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-08-01T00:15:42Z",
    "title_canon_sha256": "44f17f2e1850914cab10761d1d2644d1733ffc583cb9a5dfd1b57d568a032db8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0068",
    "kind": "arxiv",
    "version": 1
  }
}