Pith Number

pith:SQYBQQPI

pith:2016:SQYBQQPINLI3RV3P3SRGNUB335

not attested not anchored not stored refs pending

General approach to quantum channel impossibility by local operations and classical communication

Scott M. Cohen

arxiv:1606.00029 v2 · 2016-05-31 · 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{SQYBQQPINLI3RV3P3SRGNUB335}

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	2026-05-18T00:52:34.271579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94301841e86ad1b8d76fdca266d03bdf4f3c9283921295faa329b75e8e3b26cc

Aliases

arxiv: 1606.00029 · arxiv_version: 1606.00029v2 · doi: 10.48550/arxiv.1606.00029 · pith_short_12: SQYBQQPINLI3 · pith_short_16: SQYBQQPINLI3RV3P · pith_short_8: SQYBQQPI

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/SQYBQQPINLI3RV3P3SRGNUB335 \
  | 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: 94301841e86ad1b8d76fdca266d03bdf4f3c9283921295faa329b75e8e3b26cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7265814aaaf03dace04d052fe132cff80ba0de45797108bda85885bc15f8618",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-05-31T20:20:32Z",
    "title_canon_sha256": "9103d09c7ccd92feb43ee7664fb54761ffa81967999c811d441634cacf63f3bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.00029",
    "kind": "arxiv",
    "version": 2
  }
}