Pith Number

pith:UIRPNOOG

pith:2016:UIRPNOOGAXY2MB7BZQL7N6DHCF

not attested not anchored not stored refs pending

Quantum Observables and Effect Algebras

Anatolij Dvure\v{c}enskij

arxiv:1609.06691 v1 · 2016-09-21 · math-ph · math.MP · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UIRPNOOGAXY2MB7BZQL7N6DHCF}

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	2026-05-18T00:28:56.845222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a222f6b9c605f1a607e1cc17f6f86711513e71fc5c5f6d1aacbeb42fb93761cd

Aliases

arxiv: 1609.06691 · arxiv_version: 1609.06691v1 · doi: 10.48550/arxiv.1609.06691 · pith_short_12: UIRPNOOGAXY2 · pith_short_16: UIRPNOOGAXY2MB7B · pith_short_8: UIRPNOOG

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/UIRPNOOGAXY2MB7BZQL7N6DHCF \
  | 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: a222f6b9c605f1a607e1cc17f6f86711513e71fc5c5f6d1aacbeb42fb93761cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3d4eb04a3f4987f9fdaf9767cf4862f306ae075682e1c3dfe07437df1bf01d1",
    "cross_cats_sorted": [
      "math.MP",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-09-21T19:22:38Z",
    "title_canon_sha256": "2457590f108b5cce383cab0c26789deff2e1b7da810d5251955ffd2efea013e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.06691",
    "kind": "arxiv",
    "version": 1
  }
}