Pith Number

pith:UFON4IUH

pith:2013:UFON4IUHCJUIUMV2SKNQLCPHGP

not attested not anchored not stored refs pending

Communication complexity of promise problems and their applications to finite automata

Daowen Qiu, Jozef Gruska, Shenggen Zheng

arxiv:1309.7739 v1 · 2013-09-30 · cs.CC · cs.FL · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UFON4IUHCJUIUMV2SKNQLCPHGP}

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	2026-05-18T03:11:48.463599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a15cde228712688a32ba929b0589e733e0fa6ff41f28a2e03a68dfdda407d280

Aliases

arxiv: 1309.7739 · arxiv_version: 1309.7739v1 · doi: 10.48550/arxiv.1309.7739 · pith_short_12: UFON4IUHCJUI · pith_short_16: UFON4IUHCJUIUMV2 · pith_short_8: UFON4IUH

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/UFON4IUHCJUIUMV2SKNQLCPHGP \
  | 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: a15cde228712688a32ba929b0589e733e0fa6ff41f28a2e03a68dfdda407d280

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b050fb1472d053aba48fe51e62cc87ef43bc148c2a0aa37758d31cbff415dea8",
    "cross_cats_sorted": [
      "cs.FL",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-09-30T07:10:49Z",
    "title_canon_sha256": "5b06a90a2682eacb89f0064f0c6e87072b60dd128427234778b8d93c323e7852"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7739",
    "kind": "arxiv",
    "version": 1
  }
}