Pith Number

pith:S6UVWJFK

pith:2020:S6UVWJFK25HYVBEYHEBQQLQGUA

not attested not anchored not stored refs pending

A structure theorem for generalized-noncontextual ontological models

David Schmid, John H. Selby, Matthew F. Pusey, Robert W. Spekkens

arxiv:2005.07161 v3 · 2020-05-14 · 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{S6UVWJFK25HYVBEYHEBQQLQGUA}

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	2026-07-05T07:55:17.273679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97a95b24aad74f8a84983903082e06a00993de92c5bdc9b55acede3a3b5674ba

Aliases

arxiv: 2005.07161 · arxiv_version: 2005.07161v3 · doi: 10.48550/arxiv.2005.07161 · pith_short_12: S6UVWJFK25HY · pith_short_16: S6UVWJFK25HYVBEY · pith_short_8: S6UVWJFK

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/S6UVWJFK25HYVBEYHEBQQLQGUA \
  | 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: 97a95b24aad74f8a84983903082e06a00993de92c5bdc9b55acede3a3b5674ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "830bbfd2a4ac502326b3465a43ccf2bed23f608833a30489038f3a42ff5fd3bb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-05-14T17:28:19Z",
    "title_canon_sha256": "85aaf96f486a1dfa168e56bcbfc0bf3fa35fa6e4d17c8dbfd951fc38e66dd5db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.07161",
    "kind": "arxiv",
    "version": 3
  }
}