Pith Number

pith:PXJQB6KD

pith:2019:PXJQB6KD55PR3H4ZRABNO7NETT

not attested not anchored not stored refs pending

Unified Approach to Witness Nonentanglement-Breaking Quantum Channels

Francesco Buscemi, Kai Chen, Oscar Dahlsten, Yingqiu Mao, Yi-Zheng Zhen

arxiv:1912.10605 v3 · 2019-12-23 · 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{PXJQB6KD55PR3H4ZRABNO7NETT}

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	2026-07-05T01:14:33.950529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd300f943ef5f1d9f998802d77da49ce46fcc35c7f21c3ed8b43523118a8e34

Aliases

arxiv: 1912.10605 · arxiv_version: 1912.10605v3 · doi: 10.48550/arxiv.1912.10605 · pith_short_12: PXJQB6KD55PR · pith_short_16: PXJQB6KD55PR3H4Z · pith_short_8: PXJQB6KD

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/PXJQB6KD55PR3H4ZRABNO7NETT \
  | 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: 7dd300f943ef5f1d9f998802d77da49ce46fcc35c7f21c3ed8b43523118a8e34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e905486a8a8c5f63bb106a2e96128344dd097d22eea8b503bf83d85c2109d5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-12-23T03:35:45Z",
    "title_canon_sha256": "600cc8519109ab0053e42984ea5c5eec6abec322e7a5d0a2b46b0504032aedd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.10605",
    "kind": "arxiv",
    "version": 3
  }
}