Pith Number

pith:CPUZB2NH

pith:2023:CPUZB2NHKPLHGBRQDPMKWYGR4S

not attested not anchored not stored refs pending

Must the Communication Graph of MPC Protocols be an Expander?

Deepesh Data, Elette Boyle, Pavel Hub\'a\v{c}ek, Ran Cohen

arxiv:2305.11428 v2 · 2023-05-19 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPUZB2NHKPLHGBRQDPMKWYGR4S}

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	2026-07-05T06:23:04.093586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13e990e9a753d67306301bd8ab60d1e4a6f81bed503842fce134feccff25e312

Aliases

arxiv: 2305.11428 · arxiv_version: 2305.11428v2 · doi: 10.48550/arxiv.2305.11428 · pith_short_12: CPUZB2NHKPLH · pith_short_16: CPUZB2NHKPLHGBRQ · pith_short_8: CPUZB2NH

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/CPUZB2NHKPLHGBRQDPMKWYGR4S \
  | 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: 13e990e9a753d67306301bd8ab60d1e4a6f81bed503842fce134feccff25e312

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddf747214e1cebf1edd71f8205e67ee80ff085323524a25f0439ab874d423bdd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2023-05-19T04:56:41Z",
    "title_canon_sha256": "2e6f098a9f2534c8ca172a6668dda02e5264228d70fe8be479179ac57d92ea8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.11428",
    "kind": "arxiv",
    "version": 2
  }
}