Pith Number

pith:LDDVC6IP

pith:2023:LDDVC6IPYBBLLPJK6SRU4IQTYL

not attested not anchored not stored refs pending

The unphysicality of Hilbert spaces

Christine A. Aidala, Francisco Calderon, Gabriele Carcassi

arxiv:2308.06669 v3 · 2023-08-13 · 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{LDDVC6IPYBBLLPJK6SRU4IQTYL}

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	2026-07-05T09:59:12.361303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58c751790fc042b5bd2af4a34e2213c2f47d9f66d5793e9c490a3d09eef30b12

Aliases

arxiv: 2308.06669 · arxiv_version: 2308.06669v3 · doi: 10.48550/arxiv.2308.06669 · pith_short_12: LDDVC6IPYBBL · pith_short_16: LDDVC6IPYBBLLPJK · pith_short_8: LDDVC6IP

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/LDDVC6IPYBBLLPJK6SRU4IQTYL \
  | 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: 58c751790fc042b5bd2af4a34e2213c2f47d9f66d5793e9c490a3d09eef30b12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ee3cbee170e4ceb5104cd8cd999d9b386e4ac9ac02a42bb8e9c0ce6b20ad3b8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-08-13T03:03:22Z",
    "title_canon_sha256": "58d0de42a713452fc0d3bae23b51c8b0a5983f15b349f513a9e4ebc7498825ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.06669",
    "kind": "arxiv",
    "version": 3
  }
}