Pith Number

pith:ENUBBJDP

pith:2026:ENUBBJDPSBJGHO7AMI7MKJAEZG

not attested not anchored not stored refs pending

Generalized two-qubit Hamiltonian for Projective Quantum Feature Maps

Edson Amaro Junior, Felipe Fanchini, Rafael Sim\~oes do Carmo

arxiv:2606.13641 v1 · 2026-06-11 · 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{ENUBBJDPSBJGHO7AMI7MKJAEZG}

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	2026-06-12T01:10:20.519994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

236810a46f905263bbe0623ec52404c9938f2a0552df04e1e4802011a8151b45

Aliases

arxiv: 2606.13641 · arxiv_version: 2606.13641v1 · doi: 10.48550/arxiv.2606.13641 · pith_short_12: ENUBBJDPSBJG · pith_short_16: ENUBBJDPSBJGHO7A · pith_short_8: ENUBBJDP

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/ENUBBJDPSBJGHO7AMI7MKJAEZG \
  | 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: 236810a46f905263bbe0623ec52404c9938f2a0552df04e1e4802011a8151b45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2169c61ddc76986af90639b7aadaca4460824476fc0b479795c552aa013a6e41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-11T17:47:04Z",
    "title_canon_sha256": "468f214bdc0f47d2361c253bf7343e440fb3151c6396c1a1c657bf3c0877f6ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13641",
    "kind": "arxiv",
    "version": 1
  }
}