Pith Number

pith:ZWOE3JE3

pith:2021:ZWOE3JE3266SFSAFB4GEGP4IQI

not attested not anchored not stored refs pending

General conditions for universality of Quantum Hamiltonians

Johannes Bausch, Stephen Piddock, Tamara Kohler, Toby Cubitt

arxiv:2101.12319 v2 · 2021-01-28 · 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{ZWOE3JE3266SFSAFB4GEGP4IQI}

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	2026-07-05T04:05:56.748838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd9c4da49bd7bd22c8050f0c433f8882229de13fd2632dfda47ae7085241989b

Aliases

arxiv: 2101.12319 · arxiv_version: 2101.12319v2 · doi: 10.48550/arxiv.2101.12319 · pith_short_12: ZWOE3JE3266S · pith_short_16: ZWOE3JE3266SFSAF · pith_short_8: ZWOE3JE3

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/ZWOE3JE3266SFSAFB4GEGP4IQI \
  | 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: cd9c4da49bd7bd22c8050f0c433f8882229de13fd2632dfda47ae7085241989b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e863b33f8d3fe888f9b5f86e3e07bc1cee5a8301aa6d6985f7818eb50d31044",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-01-28T23:20:43Z",
    "title_canon_sha256": "fc484d3d9aac8107f6e4d448f196cddf1df8c655e73a44feab55e7288d1023ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.12319",
    "kind": "arxiv",
    "version": 2
  }
}