Pith Number

pith:KQ2FOJKO

pith:2004:KQ2FOJKO4W54FTCLPKB4LQW5QJ

not attested not anchored not stored refs pending

Robust Quantum Algorithms for Oracle Identification

Akinori Kawachi, Andris Ambainis, Kazuo Iwama, Rudy Raymond, Shigeru Yamashita

arxiv:quant-ph/0411204 v5 · 2004-11-30 · 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{KQ2FOJKO4W54FTCLPKB4LQW5QJ}

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	2026-07-04T14:50:17.497608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

543457254ee5bbc2cc4b7a83c5c2dd8240ea8eb74f748ac839e82802513d7696

Aliases

arxiv: quant-ph/0411204 · arxiv_version: quant-ph/0411204v5 · doi: 10.48550/arxiv.quant-ph/0411204 · pith_short_12: KQ2FOJKO4W54 · pith_short_16: KQ2FOJKO4W54FTCL · pith_short_8: KQ2FOJKO

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/KQ2FOJKO4W54FTCLPKB4LQW5QJ \
  | 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: 543457254ee5bbc2cc4b7a83c5c2dd8240ea8eb74f748ac839e82802513d7696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cc906335a56e267122c619c1a368e3e2c68190ac2586f5452e1a5cb4af3237f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-11-30T03:17:02Z",
    "title_canon_sha256": "ae37ac0f31b62fad3defa7a251f3403b4104ed50402294988d05206ece0484c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0411204",
    "kind": "arxiv",
    "version": 5
  }
}