Pith Number

pith:TY3BFWQ5

pith:2017:TY3BFWQ5LNQ7UBHUYYCIW6TIBF

not attested not anchored not stored refs pending

Empirical Analysis of the Necessary and Sufficient Conditions of the Echo State Property

Sebasti\'an Basterrech

arxiv:1703.06664 v1 · 2017-03-20 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TY3BFWQ5LNQ7UBHUYYCIW6TIBF}

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	2026-05-18T00:48:22.091295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e3612da1d5b61fa04f4c6048b7a6809592768bee460ad5162fae8ab4df7d60a

Aliases

arxiv: 1703.06664 · arxiv_version: 1703.06664v1 · doi: 10.48550/arxiv.1703.06664 · pith_short_12: TY3BFWQ5LNQ7 · pith_short_16: TY3BFWQ5LNQ7UBHU · pith_short_8: TY3BFWQ5

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/TY3BFWQ5LNQ7UBHUYYCIW6TIBF \
  | 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: 9e3612da1d5b61fa04f4c6048b7a6809592768bee460ad5162fae8ab4df7d60a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "132b1b0e5e95a37c8bc018e7c7d6f80f44e91641cbead398735df52cb7fdf079",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2017-03-20T10:49:36Z",
    "title_canon_sha256": "03d4eaddf407d29b770e4a4a9f873172f6367aa2bcdba2ca2f345eb83514eeaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06664",
    "kind": "arxiv",
    "version": 1
  }
}