Pith Number

pith:QNOEBJ4Y

pith:2020:QNOEBJ4YJ55ZRL46JI5FSY56AM

not attested not anchored not stored refs pending

Universal Translationally-Invariant Hamiltonians

Johannes Bausch, Stephen Piddock

arxiv:2001.08050 v1 · 2020-01-22 · 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{QNOEBJ4YJ55ZRL46JI5FSY56AM}

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.

Cited by

1 paper in Pith

The rotation-invariant Hamiltonian problem is QMA$_{\rm EXP}$-complete

Receipt and verification

First computed	2026-07-05T00:35:07.337329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835c40a7984f7b98af9e4a3a5963be0324cf19c5ef585457ccab6dcb1cd10278

Aliases

arxiv: 2001.08050 · arxiv_version: 2001.08050v1 · doi: 10.48550/arxiv.2001.08050 · pith_short_12: QNOEBJ4YJ55Z · pith_short_16: QNOEBJ4YJ55ZRL46 · pith_short_8: QNOEBJ4Y

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/QNOEBJ4YJ55ZRL46JI5FSY56AM \
  | 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: 835c40a7984f7b98af9e4a3a5963be0324cf19c5ef585457ccab6dcb1cd10278

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da1f178f802091c2efc3ae4d60e1b84370e79ed5db4d3b54bc02a23981150d72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-01-22T15:10:29Z",
    "title_canon_sha256": "6b3c3df817006aa8f100b7021dce49f33729666234613faae57d64c8d1b45224"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.08050",
    "kind": "arxiv",
    "version": 1
  }
}