Pith Number

pith:OPY2N6C2

pith:2013:OPY2N6C2VN2ATQ7IJNG2IJKORO

not attested not anchored not stored refs pending

Robustness of quantum communication based on a decoherence-free subspace using a counter-propagating weak coherent light pulse

Hidetoshi Kumagai, Masato Koashi, Nobuyuki Imoto, Takashi Yamamoto

arxiv:1305.1083 v2 · 2013-05-06 · 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{OPY2N6C2VN2ATQ7IJNG2IJKORO}

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	2026-05-18T03:20:58.229789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73f1a6f85aab7409c3e84b4da4254e8ba16478044cbb2df5b60b349af58f9c1d

Aliases

arxiv: 1305.1083 · arxiv_version: 1305.1083v2 · doi: 10.48550/arxiv.1305.1083 · pith_short_12: OPY2N6C2VN2A · pith_short_16: OPY2N6C2VN2ATQ7I · pith_short_8: OPY2N6C2

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/OPY2N6C2VN2ATQ7IJNG2IJKORO \
  | 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: 73f1a6f85aab7409c3e84b4da4254e8ba16478044cbb2df5b60b349af58f9c1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ce5622d268541e444925e06ed704cf00611f287b17c17ad4669ef2635acabb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-05-06T04:17:58Z",
    "title_canon_sha256": "94fbdc5bf2e2202e0029a1f494fffc36574230808d51fcccabbe1b2a580b7c47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1083",
    "kind": "arxiv",
    "version": 2
  }
}