Pith Number

pith:Q7O2XPE5

pith:2016:Q7O2XPE5GMBRBJGHWGNU6IG2EC

not attested not anchored not stored refs pending

A necessary condition for incompatibility of observables in general probabilistic theories

Leevi Lepp\"aj\"arvi, Sergey Filippov, Teiko Heinosaari

arxiv:1609.08416 v2 · 2016-09-27 · 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{Q7O2XPE5GMBRBJGHWGNU6IG2EC}

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	2026-05-18T00:47:49.942782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87ddabbc9d330310a4c7b19b4f20da2084abb98a0689eba801af8d9e6663b91a

Aliases

arxiv: 1609.08416 · arxiv_version: 1609.08416v2 · doi: 10.48550/arxiv.1609.08416 · pith_short_12: Q7O2XPE5GMBR · pith_short_16: Q7O2XPE5GMBRBJGH · pith_short_8: Q7O2XPE5

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/Q7O2XPE5GMBRBJGHWGNU6IG2EC \
  | 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: 87ddabbc9d330310a4c7b19b4f20da2084abb98a0689eba801af8d9e6663b91a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "302da7421810ddb89f8a62257f5a0b701dfdab3ddd94dab72b64ea01787cd8a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-09-27T13:26:44Z",
    "title_canon_sha256": "6e92a5aaed5b4c24915a74979659e888de7d3fac3302c73fa0681786c6a5c7b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08416",
    "kind": "arxiv",
    "version": 2
  }
}