Pith Number

pith:NIHIFHKF

pith:2024:NIHIFHKF3HFA4F533RWNJ4GAPF

not attested not anchored not stored refs pending

A Search for Classical Subsystems in Quantum Worlds

Andreas Albrecht, Andrew Arrasmith, Andrew Sornborger, Arsalan Adil, Manuel S. Rudolph, Zo\"e Holmes

arxiv:2403.10895 v4 · 2024-03-16 · quant-ph · 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{NIHIFHKF3HFA4F533RWNJ4GAPF}

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	2026-05-28T02:04:38.869772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a0e829d45d9ca0e17bbdc6cd4f0c07979e543e03533283f3df7a3f470876a23

Aliases

arxiv: 2403.10895 · arxiv_version: 2403.10895v4 · doi: 10.48550/arxiv.2403.10895 · pith_short_12: NIHIFHKF3HFA · pith_short_16: NIHIFHKF3HFA4F53 · pith_short_8: NIHIFHKF

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/NIHIFHKF3HFA4F533RWNJ4GAPF \
  | 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: 6a0e829d45d9ca0e17bbdc6cd4f0c07979e543e03533283f3df7a3f470876a23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dc52fd4da98e4056fcf0889bf2a8daf1d653d292fcbddc3e9cd5344d5370b78",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2024-03-16T11:12:31Z",
    "title_canon_sha256": "6d1c8f00ef43a771db2d6a6aa11632a0ffce24d5108eee9728f8e106ac57a2a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.10895",
    "kind": "arxiv",
    "version": 4
  }
}