Pith Number

pith:Q7Z7ZUTN

pith:2014:Q7Z7ZUTNQEQ3UTMRPQEJEFOFH3

not attested not anchored not stored refs pending

Why QBism is not the Copenhagen interpretation and what John Bell might have thought of it

N. David Mermin

arxiv:1409.2454 v1 · 2014-09-08 · quant-ph · physics.hist-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{Q7Z7ZUTNQEQ3UTMRPQEJEFOFH3}

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	2026-05-18T02:43:16.957530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87f3fcd26d8121ba4d917c089215c53ef9325f465f5861942654aa08370dd975

Aliases

arxiv: 1409.2454 · arxiv_version: 1409.2454v1 · doi: 10.48550/arxiv.1409.2454 · pith_short_12: Q7Z7ZUTNQEQ3 · pith_short_16: Q7Z7ZUTNQEQ3UTMR · pith_short_8: Q7Z7ZUTN

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/Q7Z7ZUTNQEQ3UTMRPQEJEFOFH3 \
  | 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: 87f3fcd26d8121ba4d917c089215c53ef9325f465f5861942654aa08370dd975

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4ceda739446cab1d496c874785627d27b2a122bf39414143062694e41929860",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-08T18:25:57Z",
    "title_canon_sha256": "f3ce2fba78a804cb3b047fb11b736a96ae81954782231ca2b456a46dcd72a0df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2454",
    "kind": "arxiv",
    "version": 1
  }
}