Pith Number

pith:QVGRV2FI

pith:2023:QVGRV2FIYC6YGYFFMPLYKWFGGX

not attested not anchored not stored refs pending

Demonstration of quantum-digital payments

Alessandro Trenti, Esther Sztatecsny, Julia Kalb, Marie-Christine Roehsner, Mathieu Bozzio, Peter Schiansky, Philip Walther, Tobias Guggemos

arxiv:2305.14504 v2 · 2023-05-23 · quant-ph · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVGRV2FIYC6YGYFFMPLYKWFGGX}

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	2026-07-05T07:30:49.286568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

854d1ae8a8c0bd8360a563d78558a635f5016662b9c7596979f3c61c490d472d

Aliases

arxiv: 2305.14504 · arxiv_version: 2305.14504v2 · doi: 10.48550/arxiv.2305.14504 · pith_short_12: QVGRV2FIYC6Y · pith_short_16: QVGRV2FIYC6YGYFF · pith_short_8: QVGRV2FI

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/QVGRV2FIYC6YGYFFMPLYKWFGGX \
  | 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: 854d1ae8a8c0bd8360a563d78558a635f5016662b9c7596979f3c61c490d472d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeb0b3d208fbf809ca035e62437d1923dc086649e87c83cc17dffec11c2bbcfa",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-05-23T20:20:14Z",
    "title_canon_sha256": "bfb45a05a4f3e7032b4c445ce99f1b0a6356a900752768d7e5da6c579172c306"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.14504",
    "kind": "arxiv",
    "version": 2
  }
}