Pith Number

pith:OGWEFBNQ

pith:1993:OGWEFBNQM46G4HF7DMJX7BOCK7

not attested not anchored not stored refs pending

The Reduction of the State Vector and Limitations on Measurement in the Quantum Mechanics of Closed Systems

James B. Hartle

arxiv:gr-qc/9301011 v3 · 1993-01-13 · gr-qc · hep-th · 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{OGWEFBNQM46G4HF7DMJX7BOCK7}

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	2026-05-18T03:02:31.320368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71ac4285b0673c6e1cbf1b137f85c257dab657fc0f94d717b8667efcda4c3214

Aliases

arxiv: gr-qc/9301011 · arxiv_version: gr-qc/9301011v3 · doi: 10.48550/arxiv.gr-qc/9301011 · pith_short_12: OGWEFBNQM46G · pith_short_16: OGWEFBNQM46G4HF7 · pith_short_8: OGWEFBNQ

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/OGWEFBNQM46G4HF7DMJX7BOCK7 \
  | 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: 71ac4285b0673c6e1cbf1b137f85c257dab657fc0f94d717b8667efcda4c3214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f81bdde40ce689a0a5860d9e4c5184108efab479fec284e21af633f64d534199",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-01-13T19:09:48Z",
    "title_canon_sha256": "a549ad8ae7b88e558ab6a8451312e9479c286472105bf4f88e215c14724b5909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9301011",
    "kind": "arxiv",
    "version": 3
  }
}