Pith Number

pith:SWFTL55N

pith:2021:SWFTL55NT6PNIDDMWW4SZBUXBW

not attested not anchored not stored refs pending

Detecting Quantum Capacities of Continuous-Variable Quantum Channels

Giulio Chiribella, Ya-Dong Wu

arxiv:2108.13348 v4 · 2021-08-30 · 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{SWFTL55NT6PNIDDMWW4SZBUXBW}

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	2026-07-05T05:20:58.531931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

958b35f7ad9f9ed40c6cb5b92c86970da5cfa225dfb3188ead8871bca2a640c5

Aliases

arxiv: 2108.13348 · arxiv_version: 2108.13348v4 · doi: 10.48550/arxiv.2108.13348 · pith_short_12: SWFTL55NT6PN · pith_short_16: SWFTL55NT6PNIDDM · pith_short_8: SWFTL55N

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/SWFTL55NT6PNIDDMWW4SZBUXBW \
  | 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: 958b35f7ad9f9ed40c6cb5b92c86970da5cfa225dfb3188ead8871bca2a640c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7d75eacaf09ebdb76cc5cc63119943edc3dee0a745ba3ffdded7fd21468a281",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-08-30T16:18:39Z",
    "title_canon_sha256": "ddd4e62cd98a0a89f98f483b4ac11626a86eb9fdb9669ffb2d0d36c62ac2fbfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.13348",
    "kind": "arxiv",
    "version": 4
  }
}