Pith Number

pith:T7YCJUXQ

pith:2009:T7YCJUXQF6ESZV47JL2BM32SIC

not attested not anchored not stored refs pending

Span programs and quantum query complexity: The general adversary bound is nearly tight for every boolean function

Ben W. Reichardt

arxiv:0904.2759 v1 · 2009-04-17 · 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{T7YCJUXQF6ESZV47JL2BM32SIC}

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.

Cited by

1 paper in Pith

Span Programs and Quantum Space Complexity

Receipt and verification

First computed	2026-05-18T00:58:20.232889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ff024d2f02f892cd79f4af4166f5240b86778c12a20ec3778860f0a953f740d

Aliases

arxiv: 0904.2759 · arxiv_version: 0904.2759v1 · doi: 10.48550/arxiv.0904.2759 · pith_short_12: T7YCJUXQF6ES · pith_short_16: T7YCJUXQF6ESZV47 · pith_short_8: T7YCJUXQ

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/T7YCJUXQF6ESZV47JL2BM32SIC \
  | 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: 9ff024d2f02f892cd79f4af4166f5240b86778c12a20ec3778860f0a953f740d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f66b559745645873437fdfb1343de884da4d7056a9f978dd192bc7478120bc8",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-04-17T18:41:43Z",
    "title_canon_sha256": "69b73661bb4c4b51e89de9f557310df2906a67043ed37453883b5431f4153159"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2759",
    "kind": "arxiv",
    "version": 1
  }
}