Pith Number

pith:XPKUGGY4

pith:2015:XPKUGGY4KMISKZYR7347P6ON2C

not attested not anchored not stored refs pending

Assignment of Different-Sized Inputs in MapReduce

Ephraim Korach, Foto Afrati, Jeffrey D. Ullman, Shantanu Sharma, Shlomi Dolev

arxiv:1501.06758 v1 · 2015-01-27 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPKUGGY4KMISKZYR7347P6ON2C}

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	2026-05-18T02:28:32.724242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbd5431b1c5311256711fef9f7f9cdd0aee9c0cc0c447cf3cadededdcb5e891d

Aliases

arxiv: 1501.06758 · arxiv_version: 1501.06758v1 · doi: 10.48550/arxiv.1501.06758 · pith_short_12: XPKUGGY4KMIS · pith_short_16: XPKUGGY4KMISKZYR · pith_short_8: XPKUGGY4

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/XPKUGGY4KMISKZYR7347P6ON2C \
  | 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: bbd5431b1c5311256711fef9f7f9cdd0aee9c0cc0c447cf3cadededdcb5e891d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b3d3b9bd6be1e9474492226784527a2f0d25ffa9f0618867c92d951f84350db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2015-01-27T12:37:21Z",
    "title_canon_sha256": "bfd12d58f6a1567855d91374d2da76c92c1b2f2a5e194bb4c2262f6c9dac404d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06758",
    "kind": "arxiv",
    "version": 1
  }
}