Pith Number

pith:K3MQQ5GR

pith:2026:K3MQQ5GRY5EOKZQQ4JVT5TDYGK

not attested not anchored not stored refs pending

A reason why we do not observe Schr\"odinger's cats

Fabio Siringo

arxiv:2605.16148 v1 · 2026-05-15 · quant-ph · cond-mat.stat-mech · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K3MQQ5GRY5EOKZQQ4JVT5TDYGK}

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	2026-05-20T00:01:55.100207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56d90874d1c748e56610e26b3ecc78328b223b9282ab2eefc6fe09249cc6693b

Aliases

arxiv: 2605.16148 · arxiv_version: 2605.16148v1 · doi: 10.48550/arxiv.2605.16148 · pith_short_12: K3MQQ5GRY5EO · pith_short_16: K3MQQ5GRY5EOKZQQ · pith_short_8: K3MQQ5GR

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/K3MQQ5GRY5EOKZQQ4JVT5TDYGK \
  | 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: 56d90874d1c748e56610e26b3ecc78328b223b9282ab2eefc6fe09249cc6693b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "114054c904554ed73417ce243b7183f6705e888cdca4d93c6a7b74525db6eb23",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-15T16:28:30Z",
    "title_canon_sha256": "e5d733ea72b13e25ae3182ea3609146d98e5ad8b3df22ffd7ac9d895648b8bba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16148",
    "kind": "arxiv",
    "version": 1
  }
}