Pith Number

pith:IRDEKL4F

pith:2025:IRDEKL4FAWL2NY2BA4WOC343ZD

not attested not anchored not stored refs pending

Deciding Whether a C-Q Channel Preserves a Bit is QCMA-Complete

Andrej Vukovic, Arthur Mehta, Kiera Hutton

arxiv:2508.10664 v1 · 2025-08-14 · quant-ph · cs.CC · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRDEKL4FAWL2NY2BA4WOC343ZD}

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	2026-07-05T11:54:00.487387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4446452f850597a6e341072ce16f9bc8de5f102044e77762e134d62ed9087b56

Aliases

arxiv: 2508.10664 · arxiv_version: 2508.10664v1 · doi: 10.48550/arxiv.2508.10664 · pith_short_12: IRDEKL4FAWL2 · pith_short_16: IRDEKL4FAWL2NY2B · pith_short_8: IRDEKL4F

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/IRDEKL4FAWL2NY2BA4WOC343ZD \
  | 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: 4446452f850597a6e341072ce16f9bc8de5f102044e77762e134d62ed9087b56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df2a469d9df8bc8aa826933ccc982da125dbaa7ba745ce506cb5ebf69689f00d",
    "cross_cats_sorted": [
      "cs.CC",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-08-14T14:03:38Z",
    "title_canon_sha256": "48f7cf9b601ddf521ccba1e86b836f56a092cd4ed403d336c59675784de83b01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.10664",
    "kind": "arxiv",
    "version": 1
  }
}