Pith Number

pith:H5T4V2XB

pith:2021:H5T4V2XB7YTWO2R4V57FZQ54W4

not attested not anchored not stored refs pending

Quantum vs. noncontextual semi-device-independent randomness certification

Carles Roch I Carceller, Hanwool Lee, Jonatan Bohr Brask, Joonwoo Bae, Kieran Flatt

arxiv:2112.09678 v1 · 2021-12-17 · 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{H5T4V2XB7YTWO2R4V57FZQ54W4}

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	2026-07-05T04:46:34.261380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f67caeae1fe27676a3caf7e5cc3bcb7051fe6acf86520769d8600d8bd378536

Aliases

arxiv: 2112.09678 · arxiv_version: 2112.09678v1 · doi: 10.48550/arxiv.2112.09678 · pith_short_12: H5T4V2XB7YTW · pith_short_16: H5T4V2XB7YTWO2R4 · pith_short_8: H5T4V2XB

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/H5T4V2XB7YTWO2R4V57FZQ54W4 \
  | 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: 3f67caeae1fe27676a3caf7e5cc3bcb7051fe6acf86520769d8600d8bd378536

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "345f1911635eda5ba7731f170c977eae4cb55fe1db847c3907ad589f06a8c242",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-12-17T18:46:19Z",
    "title_canon_sha256": "040e87dd1c17832b08952949882d4b1222579852a761b3e2475395c656c96a79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.09678",
    "kind": "arxiv",
    "version": 1
  }
}