Pith Number

pith:7ZFHM2TZ

pith:2014:7ZFHM2TZGMMUYTK7PK3YFQWTAZ

not attested not anchored not stored refs pending

Towards a Calculus of Echo State Networks

Alireza Goudarzi, Darko Stefanovic

arxiv:1409.0280 v1 · 2014-09-01 · 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{7ZFHM2TZGMMUYTK7PK3YFQWTAZ}

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	2026-05-18T02:43:53.041174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe4a766a7933194c4d5f7ab782c2d3065689ab3b80e318ddfb07055334c0c67c

Aliases

arxiv: 1409.0280 · arxiv_version: 1409.0280v1 · doi: 10.48550/arxiv.1409.0280 · pith_short_12: 7ZFHM2TZGMMU · pith_short_16: 7ZFHM2TZGMMUYTK7 · pith_short_8: 7ZFHM2TZ

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/7ZFHM2TZGMMUYTK7PK3YFQWTAZ \
  | 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: fe4a766a7933194c4d5f7ab782c2d3065689ab3b80e318ddfb07055334c0c67c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d4cdc9371cd5725e643a6c4c2510fff35434cde49308841b7a2948fe8f8c26b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2014-09-01T02:12:04Z",
    "title_canon_sha256": "7c153f6b9abfc7f146e75212e6ac3004a9b155e3a55046a682a8ed94661ec268"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0280",
    "kind": "arxiv",
    "version": 1
  }
}