Pith Number

pith:SMZTLCWL

pith:2018:SMZTLCWLWEUXBQMWEY4ZZ3WRZ7

not attested not anchored not stored refs pending

Simple Refutation of the Eppley-Hannah argument

Adrian Kent (Centre for Quantum Information, DAMTP, Foundations, Perimeter Institute for Theoretical Physics), University of Cambridge

arxiv:1807.08708 v3 · 2018-07-23 · gr-qc · physics.hist-ph · 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{SMZTLCWLWEUXBQMWEY4ZZ3WRZ7}

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	2026-05-17T23:57:15.034687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9333358acbb12970c19626399ceed1cff5c141cab97ef43e94b3beca2fce4fb8

Aliases

arxiv: 1807.08708 · arxiv_version: 1807.08708v3 · doi: 10.48550/arxiv.1807.08708 · pith_short_12: SMZTLCWLWEUX · pith_short_16: SMZTLCWLWEUXBQMW · pith_short_8: SMZTLCWL

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/SMZTLCWLWEUXBQMWEY4ZZ3WRZ7 \
  | 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: 9333358acbb12970c19626399ceed1cff5c141cab97ef43e94b3beca2fce4fb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "130245feafd01767bb3ed1e5a3d30726c667b90a81c7e6c5c71b9300991f87b6",
    "cross_cats_sorted": [
      "physics.hist-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-23T16:37:43Z",
    "title_canon_sha256": "2f92f7b7f35c9211dc18ddcfad9f18ca1901bb7ebb8cf6c70a6de93305b5fc84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08708",
    "kind": "arxiv",
    "version": 3
  }
}