Pith Number

pith:ZKHL7MQA

pith:2018:ZKHL7MQAXMO4ZHZSNDRVYNLAJF

not attested not anchored not stored refs pending

Optimizing a quantum reservoir computer for time series prediction

Aki Kutvonen, Keisuke Fujii, Takahiro Sagawa

arxiv:1807.03947 v2 · 2018-07-11 · cond-mat.dis-nn · 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{ZKHL7MQAXMO4ZHZSNDRVYNLAJF}

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	2026-07-05T01:13:41.064878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca8ebfb200bb1dcc9f3268e35c35604959b562baee3925e26647a4178f076dbb

Aliases

arxiv: 1807.03947 · arxiv_version: 1807.03947v2 · doi: 10.48550/arxiv.1807.03947 · pith_short_12: ZKHL7MQAXMO4 · pith_short_16: ZKHL7MQAXMO4ZHZS · pith_short_8: ZKHL7MQA

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/ZKHL7MQAXMO4ZHZSNDRVYNLAJF \
  | 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: ca8ebfb200bb1dcc9f3268e35c35604959b562baee3925e26647a4178f076dbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8ac8a45e90314e69acb55562f1905a4c794239876882a7eb58d48c6269bb4eb",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.dis-nn",
    "submitted_at": "2018-07-11T04:36:47Z",
    "title_canon_sha256": "e1bfd3dda460f0fa456ec36d5e21ea00213e8d6ac4ad2c533412776f9d2f00aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03947",
    "kind": "arxiv",
    "version": 2
  }
}