Pith Number

pith:BZ2BVTXS

pith:2014:BZ2BVTXS3CKSFWXXCV6X47JFFL

not attested not anchored not stored refs pending

The roads not taken: empty waves, wavefunction collapse and protective measurement in quantum theory

Peter Holland

arxiv:1409.5817 v1 · 2014-09-19 · 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{BZ2BVTXS3CKSFWXXCV6X47JFFL}

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	2026-05-18T02:42:15.960603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e741acef2d89522daf7157d7e7d252acbbcbb78f62a67ba797f830bc39b6fd7

Aliases

arxiv: 1409.5817 · arxiv_version: 1409.5817v1 · doi: 10.48550/arxiv.1409.5817 · pith_short_12: BZ2BVTXS3CKS · pith_short_16: BZ2BVTXS3CKSFWXX · pith_short_8: BZ2BVTXS

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/BZ2BVTXS3CKSFWXXCV6X47JFFL \
  | 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: 0e741acef2d89522daf7157d7e7d252acbbcbb78f62a67ba797f830bc39b6fd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f094248e346d548f1986cba280c3eed9bfe05fefe5d98017185fc2b9f1c8183",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-19T21:01:38Z",
    "title_canon_sha256": "d84fe7b50eeb196d21a336540a84343f5b6d367ddf48e3b16bafb18fd2f8b519"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.5817",
    "kind": "arxiv",
    "version": 1
  }
}