Pith Number

pith:FHD3IBAP

pith:2016:FHD3IBAP7YVVQVLHDDCXB7GGZO

not attested not anchored not stored refs pending

Wiener system identification with generalized orthonormal basis functions

Johan Schoukens, Koen Tiels

arxiv:1612.04558 v1 · 2016-12-14 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FHD3IBAP7YVVQVLHDDCXB7GGZO}

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	2026-05-18T00:54:59.196625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29c7b4040ffe2b58556718c570fcc6cba9de3e7a8e039b38ac7843a017262139

Aliases

arxiv: 1612.04558 · arxiv_version: 1612.04558v1 · doi: 10.48550/arxiv.1612.04558 · pith_short_12: FHD3IBAP7YVV · pith_short_16: FHD3IBAP7YVVQVLH · pith_short_8: FHD3IBAP

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/FHD3IBAP7YVVQVLHDDCXB7GGZO \
  | 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: 29c7b4040ffe2b58556718c570fcc6cba9de3e7a8e039b38ac7843a017262139

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a679dddedf7f99a68d4f3bd520fde1bb07269f7f8d58006f5efcbdcb3ba86ac8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2016-12-14T10:05:15Z",
    "title_canon_sha256": "a3701054e6b7783740495cba7ed051ad6d03aff14556e84a9f3474a0b947ee0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04558",
    "kind": "arxiv",
    "version": 1
  }
}