Pith Number

pith:ELQCFJUH

pith:2011:ELQCFJUHEKCH25H3XM7SSGIW73

not attested not anchored not stored refs pending

The Efficiency of MapReduce in Parallel External Memory

Gero Greiner, Riko Jacob

arxiv:1112.3765 v1 · 2011-12-16 · cs.DC · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ELQCFJUHEKCH25H3XM7SSGIW73}

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	2026-05-18T04:06:08.857173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22e022a68722847d74fbbb3f291916fee954be0542ee29f6ebdd1335ab64cc55

Aliases

arxiv: 1112.3765 · arxiv_version: 1112.3765v1 · doi: 10.48550/arxiv.1112.3765 · pith_short_12: ELQCFJUHEKCH · pith_short_16: ELQCFJUHEKCH25H3 · pith_short_8: ELQCFJUH

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/ELQCFJUHEKCH25H3XM7SSGIW73 \
  | 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: 22e022a68722847d74fbbb3f291916fee954be0542ee29f6ebdd1335ab64cc55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d9d043d84187a97c51f19d8b35b4650f8cf6588a6d24867fc38f2b79d4b0fb7",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2011-12-16T11:27:07Z",
    "title_canon_sha256": "af14db530762c3f181d56227cbdcc09fd8e2a23f37d64d57200d2e591bac2efe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3765",
    "kind": "arxiv",
    "version": 1
  }
}