Pith Number

pith:LOGWFEJV

pith:2019:LOGWFEJVQGVLPB22CK4KXHQFGK

not attested not anchored not stored refs pending

Certified Quantum Random Numbers from Untrusted Light

Akky Feimov, Aleksey K. Fedorov, David Drahi, Ian A. Walmsley, Jonathan Barrett, Joshua Nunn, Matty J. Hoban, Nathan Walk, Roman Shakhovoy, W. Steven Kolthammer, Yury Kurochkin

arxiv:1905.09665 v3 · 2019-05-23 · 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{LOGWFEJVQGVLPB22CK4KXHQFGK}

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	2026-07-05T02:03:22.923727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b8d62913581aab7875a12b8ab9e0532b994018350af70e89b1456f5fde65c4c

Aliases

arxiv: 1905.09665 · arxiv_version: 1905.09665v3 · doi: 10.48550/arxiv.1905.09665 · pith_short_12: LOGWFEJVQGVL · pith_short_16: LOGWFEJVQGVLPB22 · pith_short_8: LOGWFEJV

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/LOGWFEJVQGVLPB22CK4KXHQFGK \
  | 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: 5b8d62913581aab7875a12b8ab9e0532b994018350af70e89b1456f5fde65c4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe0dfbfb2be3d08994581b61d82c7fb4581642d11c4397b053e6b07a3ca1bece",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-05-23T14:04:35Z",
    "title_canon_sha256": "601164a0110dd373d22870237a75e8afd6efb42846b2a0aee876d95283f0b260"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09665",
    "kind": "arxiv",
    "version": 3
  }
}