Pith Number

pith:OGFGX7A2

pith:2004:OGFGX7A2F5B7G2LRWXD2WNDAWE

not attested not anchored not stored refs pending

Limitations of Quantum Advice and One-Way Communication

Scott Aaronson

arxiv:quant-ph/0402095 v5 · 2004-02-15 · 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{OGFGX7A2F5B7G2LRWXD2WNDAWE}

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	2026-05-18T00:12:36.111053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

718a6bfc1a2f43f36971b5c7ab3460b12381bee3484f54834c60941acf2f7f7d

Aliases

arxiv: quant-ph/0402095 · arxiv_version: quant-ph/0402095v5 · doi: 10.48550/arxiv.quant-ph/0402095 · pith_short_12: OGFGX7A2F5B7 · pith_short_16: OGFGX7A2F5B7G2LR · pith_short_8: OGFGX7A2

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/OGFGX7A2F5B7G2LRWXD2WNDAWE \
  | 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: 718a6bfc1a2f43f36971b5c7ab3460b12381bee3484f54834c60941acf2f7f7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66ef410fa451770538d53c8d19964a13480ac18d58a5feaffafa73e53df787d9",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-02-15T04:30:54Z",
    "title_canon_sha256": "8994a940ec090edbfa8e01366c94a5db279ebc5c171a68f69916601cd53e8080"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0402095",
    "kind": "arxiv",
    "version": 5
  }
}