Pith Number

pith:7Q4IDMGK

pith:2012:7Q4IDMGK3ZGHTCVRPLJG4BFGBR

not attested not anchored not stored refs pending

Superlinear advantage for exact quantum algorithms

Andris Ambainis

arxiv:1211.0721 v6 · 2012-11-04 · 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{7Q4IDMGK3ZGHTCVRPLJG4BFGBR}

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	2026-05-18T02:48:01.168873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc3881b0cade4c798ab17ad26e04a60c4e8a50dbddc555194d7dfe59e45ae2a8

Aliases

arxiv: 1211.0721 · arxiv_version: 1211.0721v6 · doi: 10.48550/arxiv.1211.0721 · pith_short_12: 7Q4IDMGK3ZGH · pith_short_16: 7Q4IDMGK3ZGHTCVR · pith_short_8: 7Q4IDMGK

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/7Q4IDMGK3ZGHTCVRPLJG4BFGBR \
  | 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: fc3881b0cade4c798ab17ad26e04a60c4e8a50dbddc555194d7dfe59e45ae2a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "572d9dd9134f8d05492ddc8302777e35bd55855dd8b511f9039df2bd9032316e",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-11-04T21:20:38Z",
    "title_canon_sha256": "22bb8540e9f53f3c9b7d029e98974c011c9813ed7262a77cc6b6dc39f4a1326f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0721",
    "kind": "arxiv",
    "version": 6
  }
}