Pith Number

pith:4DVIOUGN

pith:1993:4DVIOUGNVDJN27VGKNVMFOFTBJ

not attested not anchored not stored refs pending

Impossible Measurements on Quantum Fields

Rafael D. Sorkin

arxiv:gr-qc/9302018 v2 · 1993-02-17 · gr-qc · 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{4DVIOUGNVDJN27VGKNVMFOFTBJ}

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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.

Cited by

5 papers in Pith

On the Meaning of Localization in Non-Local Quantum Field Theory and On the Limits of a Space-Time Description and the Physical Meaning of Phase Space in a Nonlocal Continuum

Rethinking quantum information in gravity and fields

On the Meaning of Localization in Non-Local Quantum Field Theory and On the Limits of a Space-Time Description and the Physical Meaning of Phase Space in a Nonlocal Continuum

Phenomenological constraints on "impossible" measurements

Causal measurement in quantum field theory: spacetime

Receipt and verification

First computed	2026-07-04T15:07:24.905919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0ea8750cda8d2dd7ea6536ac2b8b30a5106bf3a7031f5ff0ceedce3e91cf8cd

Aliases

arxiv: gr-qc/9302018 · arxiv_version: gr-qc/9302018v2 · doi: 10.48550/arxiv.gr-qc/9302018 · pith_short_12: 4DVIOUGNVDJN · pith_short_16: 4DVIOUGNVDJN27VG · pith_short_8: 4DVIOUGN

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/4DVIOUGNVDJN27VGKNVMFOFTBJ \
  | 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: e0ea8750cda8d2dd7ea6536ac2b8b30a5106bf3a7031f5ff0ceedce3e91cf8cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4618d7a5442d24ee468fb1b52f465787889a6c9f5c9dd6909b0997c2e38f64dc",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-02-17T05:54:01Z",
    "title_canon_sha256": "900ab858023548e0bb1dd4ca3b0d5efec77cf28a0f19c9ea471e6ca6ba58d4f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9302018",
    "kind": "arxiv",
    "version": 2
  }
}