Pith Number

pith:ZN5Q5JTZ

pith:2019:ZN5Q5JTZD5ZQO2S5TTA5KUKKPU

not attested not anchored not stored refs pending

Device-independent randomness expansion against quantum side information

Bing Bai, Jian-Wei Pan, Jingyun Fan, Jun Zhang, Ming-Han Li, Peter J. Brown, Qiang Zhang, Roger Colbeck, Sammy Ragy, Si-Ran Zhao, Wen-Zhao Liu, Yang Liu

arxiv:1912.11159 v2 · 2019-12-24 · 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{ZN5Q5JTZD5ZQO2S5TTA5KUKKPU}

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	2026-07-05T03:22:11.787397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb7b0ea6791f73076a5d9cc1d5514a7d36622c2202e5a019fd530a9473ef5f1d

Aliases

arxiv: 1912.11159 · arxiv_version: 1912.11159v2 · doi: 10.48550/arxiv.1912.11159 · pith_short_12: ZN5Q5JTZD5ZQ · pith_short_16: ZN5Q5JTZD5ZQO2S5 · pith_short_8: ZN5Q5JTZ

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/ZN5Q5JTZD5ZQO2S5TTA5KUKKPU \
  | 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: cb7b0ea6791f73076a5d9cc1d5514a7d36622c2202e5a019fd530a9473ef5f1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62151ae91ec2ec80855af4660570bb6a63452fab869a01efbc68b3cca59c6865",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-12-24T01:01:09Z",
    "title_canon_sha256": "6ddd4fc3a3ca01b6af8166f6ab659c554a36141aae221dbc47d40ee6b9c4e7ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.11159",
    "kind": "arxiv",
    "version": 2
  }
}