Pith Number

pith:ZM46WOVQ

pith:2018:ZM46WOVQBV6U75R6S5KZUS7WPM

not attested not anchored not stored refs pending

Echo state networks are universal

Juan-Pablo Ortega, Lyudmila Grigoryeva

arxiv:1806.00797 v2 · 2018-06-03 · cs.NE · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZM46WOVQBV6U75R6S5KZUS7WPM}

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	2026-05-18T00:07:17.428491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb39eb3ab00d7d4ff63e97559a4bf67b01ee7ed887b75e941d39f5f20648b530

Aliases

arxiv: 1806.00797 · arxiv_version: 1806.00797v2 · doi: 10.48550/arxiv.1806.00797 · pith_short_12: ZM46WOVQBV6U · pith_short_16: ZM46WOVQBV6U75R6 · pith_short_8: ZM46WOVQ

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/ZM46WOVQBV6U75R6S5KZUS7WPM \
  | 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: cb39eb3ab00d7d4ff63e97559a4bf67b01ee7ed887b75e941d39f5f20648b530

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbcf798baad1889d7fa8f2e64fd32da4ccbcb64fb9bf74856a93ea915ac27599",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2018-06-03T13:38:41Z",
    "title_canon_sha256": "a17c57421543b04b59a0a83b393e469d4b728da7893066249b33792646471d22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00797",
    "kind": "arxiv",
    "version": 2
  }
}