Pith Number

pith:PN3IIEPY

pith:2015:PN3IIEPY67S6JCK7VYCTEVZ3KK

not attested not anchored not stored refs pending

Optimal randomness certification from one entangled bit

Antonio Ac\'in, Peter Wittek, Stefano Pironio, Tam\'as V\'ertesi

arxiv:1505.03837 v1 · 2015-05-14 · 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{PN3IIEPY67S6JCK7VYCTEVZ3KK}

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.

Cited by

1 paper in Pith

Quantum randomness beyond projective measurements

Receipt and verification

First computed	2026-05-18T01:16:50.571285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b768411f8f7e5e4895fae0532573b529970c001eac870d93ef915b4a756cd18

Aliases

arxiv: 1505.03837 · arxiv_version: 1505.03837v1 · doi: 10.48550/arxiv.1505.03837 · pith_short_12: PN3IIEPY67S6 · pith_short_16: PN3IIEPY67S6JCK7 · pith_short_8: PN3IIEPY

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/PN3IIEPY67S6JCK7VYCTEVZ3KK \
  | 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: 7b768411f8f7e5e4895fae0532573b529970c001eac870d93ef915b4a756cd18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad0008044892c480af750505486529b66e17dc95817f04c3d36728af0ddba5fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-05-14T18:56:02Z",
    "title_canon_sha256": "47839e0e77de5f318e50949564f925edb9181960a975b415903f3404aa42dcf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03837",
    "kind": "arxiv",
    "version": 1
  }
}