Pith Number

pith:4UCKU6O5

pith:2014:4UCKU6O5R2AI6324GQLWSFDWWH

not attested not anchored not stored refs pending

Necessary and sufficient optimality conditions for classical simulations of quantum communication processes

Alberto Montina, Stefan Wolf

arxiv:1402.6299 v2 · 2014-02-25 · quant-ph · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UCKU6O5R2AI6324GQLWSFDWWH}

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	2026-05-18T02:33:25.455709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e504aa79dd8e808f6f5c3417691476b1d41e69ae52159e94306203edf9a19bbb

Aliases

arxiv: 1402.6299 · arxiv_version: 1402.6299v2 · doi: 10.48550/arxiv.1402.6299 · pith_short_12: 4UCKU6O5R2AI · pith_short_16: 4UCKU6O5R2AI6324 · pith_short_8: 4UCKU6O5

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/4UCKU6O5R2AI6324GQLWSFDWWH \
  | 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: e504aa79dd8e808f6f5c3417691476b1d41e69ae52159e94306203edf9a19bbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61370bcbf136d07d38726e02f759c6e408c0353881f6a43d2645e0746a58532e",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-02-25T20:15:17Z",
    "title_canon_sha256": "e48e92af687a8c80a2e65e8faa11cdc5f87d0a7758f5cc381460acdaf37b595f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6299",
    "kind": "arxiv",
    "version": 2
  }
}