Pith Number

pith:NQNDPAV6

pith:2018:NQNDPAV6VWV47NEUKRV2HG4YVX

not attested not anchored not stored refs pending

Round elimination in exact communication complexity

Debbie Leung, Florian Speelman, Harry Buhrman, Jop Bri\"et, Teresa Piovesan

arxiv:1812.09290 v1 · 2018-12-21 · quant-ph · 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{NQNDPAV6VWV47NEUKRV2HG4YVX}

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	2026-05-17T23:57:44.872197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c1a3782beadabcfb494546ba39b98adddcb64d533c71a2b4ddcd57dde592b00

Aliases

arxiv: 1812.09290 · arxiv_version: 1812.09290v1 · doi: 10.48550/arxiv.1812.09290 · pith_short_12: NQNDPAV6VWV4 · pith_short_16: NQNDPAV6VWV47NEU · pith_short_8: NQNDPAV6

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/NQNDPAV6VWV47NEUKRV2HG4YVX \
  | 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: 6c1a3782beadabcfb494546ba39b98adddcb64d533c71a2b4ddcd57dde592b00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb526ab3d364268fb733c33d64ce653dde838c2a2c566aef20c17fc379401fea",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-12-21T18:02:13Z",
    "title_canon_sha256": "f85d00220c73799612f503a6310a18d37da993ea981b49bb43bff3a829b3af52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09290",
    "kind": "arxiv",
    "version": 1
  }
}