Pith Number

pith:7FHILSNP

pith:2026:7FHILSNPFTUXQNE4G6ZNT5PJXP

not attested not anchored not stored refs pending

Quantifying randomness with measurement incompatibility

Leevi Lepp\"aj\"arvi, Leonardo S. V. Santos, Martin Pl\'avala, Pauli Jokinen, Roope Uola, Sebastian Schl\"osser

arxiv:2607.08697 v1 · 2026-07-09 · 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{7FHILSNPFTUXQNE4G6ZNT5PJXP}

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	2026-07-10T01:19:57.810183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f94e85c9af2ce978349c37b2d9f5e9bbc2af74d3bd2aafa6f70af5c3cb5c6cba

Aliases

arxiv: 2607.08697 · arxiv_version: 2607.08697v1 · doi: 10.48550/arxiv.2607.08697 · pith_short_12: 7FHILSNPFTUX · pith_short_16: 7FHILSNPFTUXQNE4 · pith_short_8: 7FHILSNP

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/7FHILSNPFTUXQNE4G6ZNT5PJXP \
  | 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: f94e85c9af2ce978349c37b2d9f5e9bbc2af74d3bd2aafa6f70af5c3cb5c6cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33d30e68ea5acbe42bb0f9fd6d1b404585b17a4c8f40390f8271ca008f4df0aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-09T16:54:26Z",
    "title_canon_sha256": "46a69bf976a6016d0cfd8da9a24a4f5f9f9e3f749fc91a828b79b8bfc607f3cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08697",
    "kind": "arxiv",
    "version": 1
  }
}