Pith Number

pith:Z3YHFEGM

pith:2015:Z3YHFEGM3HXBSPPQCYXRWRSM7Y

not attested not anchored not stored refs pending

Efficient superdense coding in the presence of non-Markovian noise

Antti Karlsson, Bi-Heng Liu, Chiara Macchiavello, Chuan-Feng Li, Elsi-Mari Laine, Guang-Can Guo, Jyrki Piilo, Sabrina Maniscalco, Xiao-Min Hu, Yun-Feng Huang

arxiv:1504.07572 v2 · 2015-04-28 · 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{Z3YHFEGM3HXBSPPQCYXRWRSM7Y}

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	2026-05-18T01:14:04.386440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cef07290ccd9ee193df0162f1b464cfe106e96577e8c714444b1cc0f8c47e5d4

Aliases

arxiv: 1504.07572 · arxiv_version: 1504.07572v2 · doi: 10.48550/arxiv.1504.07572 · pith_short_12: Z3YHFEGM3HXB · pith_short_16: Z3YHFEGM3HXBSPPQ · pith_short_8: Z3YHFEGM

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/Z3YHFEGM3HXBSPPQCYXRWRSM7Y \
  | 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: cef07290ccd9ee193df0162f1b464cfe106e96577e8c714444b1cc0f8c47e5d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae31825985f1b636cc3d092cb19a61da0bc5b5a43881ace2e2075d8d3faf8704",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-28T17:09:07Z",
    "title_canon_sha256": "eeb8a5ffe9376e1837991525f492bcae3d6a292622c8439a71253660c28603e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07572",
    "kind": "arxiv",
    "version": 2
  }
}