Pith Number

pith:KZL27UQE

pith:2018:KZL27UQEBFSS2KH54UV7X5EF76

not attested not anchored not stored refs pending

Unitary quantum perceptron as efficient universal approximator

E. Torrontegui, J. J. Garcia-Ripoll

arxiv:1801.00934 v2 · 2018-01-03 · 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{KZL27UQEBFSS2KH54UV7X5EF76}

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	2026-05-17T23:50:59.994664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5657afd20409652d28fde52bfbf485ff952d35ab44618fda4658d2947ffb4763

Aliases

arxiv: 1801.00934 · arxiv_version: 1801.00934v2 · doi: 10.48550/arxiv.1801.00934 · pith_short_12: KZL27UQEBFSS · pith_short_16: KZL27UQEBFSS2KH5 · pith_short_8: KZL27UQE

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/KZL27UQEBFSS2KH54UV7X5EF76 \
  | 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: 5657afd20409652d28fde52bfbf485ff952d35ab44618fda4658d2947ffb4763

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "115ef485171f7b33020294462c22923e0adc09bdec3272cf554d28fb5dacf5b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-01-03T09:36:30Z",
    "title_canon_sha256": "f522950f6384967dc5c6771adc0b2a753df2f9588b45be35e65ca326fb05d236"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00934",
    "kind": "arxiv",
    "version": 2
  }
}