Pith Number

pith:5QXZS54B

pith:2018:5QXZS54BP42DJO4OCTKY3RACUW

not attested not anchored not stored refs pending

Quantum Encryption and Generalized Quantum Shannon Impossibility

Ching-Yi Lai, Kai-Min Chung

arxiv:1801.03656 v2 · 2018-01-11 · cs.IT · cs.CR · math.IT · 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{5QXZS54BP42DJO4OCTKY3RACUW}

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	2026-05-17T23:56:55.611467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec2f9977817f3434bb8e14d58dc402a5b56f064261a7a832ddcf0449829f316f

Aliases

arxiv: 1801.03656 · arxiv_version: 1801.03656v2 · doi: 10.48550/arxiv.1801.03656 · pith_short_12: 5QXZS54BP42D · pith_short_16: 5QXZS54BP42DJO4O · pith_short_8: 5QXZS54B

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/5QXZS54BP42DJO4OCTKY3RACUW \
  | 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: ec2f9977817f3434bb8e14d58dc402a5b56f064261a7a832ddcf0449829f316f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd1467165939b231ba9b196174222b342fe8bfdef4f199145b7583d5a3ee46f9",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-11T08:01:17Z",
    "title_canon_sha256": "113a34704cd8bf370712a73907c16c782d2e5301396c1e77d44b2c9be9c37c96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03656",
    "kind": "arxiv",
    "version": 2
  }
}