Pith Number

pith:5XICVJYE

pith:2021:5XICVJYE5M4DLAT7O2ARPDOVE6

not attested not anchored not stored refs pending

Extendibility limits the performance of quantum processors

Andreas Winter, Eneet Kaur, Mark M. Wilde, Siddhartha Das

arxiv:2108.03137 v1 · 2021-08-06 · 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{5XICVJYE5M4DLAT7O2ARPDOVE6}

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

Semidefinite optimization of the quantum relative entropy of channels

Receipt and verification

First computed	2026-07-05T03:03:46.697632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edd02aa704eb3835827f7681178dd527b837c95c8c5f127228532218083102c3

Aliases

arxiv: 2108.03137 · arxiv_version: 2108.03137v1 · doi: 10.48550/arxiv.2108.03137 · pith_short_12: 5XICVJYE5M4D · pith_short_16: 5XICVJYE5M4DLAT7 · pith_short_8: 5XICVJYE

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/5XICVJYE5M4DLAT7O2ARPDOVE6 \
  | 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: edd02aa704eb3835827f7681178dd527b837c95c8c5f127228532218083102c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf443cbaddb8bfb9869bc3ceeab24c0c4b3898e300a7157db46dc5171d9a8683",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-08-06T14:17:08Z",
    "title_canon_sha256": "faca1592143107e7cdd6d2c4de6a3872dc0a7854b37dddebdb58c39f9b5d1da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.03137",
    "kind": "arxiv",
    "version": 1
  }
}