Pith Number

pith:WTXKPMNP

pith:2015:WTXKPMNPETEZKX6YV4BSRIDKGB

not attested not anchored not stored refs pending

Maximum entropy properties of discrete-time first-order stable spline kernel

Alessandro Chiuso, Francesca P. Carli, Gianluigi Pillonetto, Lennart Ljung, Tianshi Chen, Tohid Ardeshiri

arxiv:1504.03253 v1 · 2015-04-13 · 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{WTXKPMNPETEZKX6YV4BSRIDKGB}

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	2026-05-18T02:18:58.805274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4eea7b1af24c9955fd8af0328a06a3042469c5aea517a548e03506b85d43764

Aliases

arxiv: 1504.03253 · arxiv_version: 1504.03253v1 · doi: 10.48550/arxiv.1504.03253 · pith_short_12: WTXKPMNPETEZ · pith_short_16: WTXKPMNPETEZKX6Y · pith_short_8: WTXKPMNP

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/WTXKPMNPETEZKX6YV4BSRIDKGB \
  | 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: b4eea7b1af24c9955fd8af0328a06a3042469c5aea517a548e03506b85d43764

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "708f8d4ae562dd27bba738af1abd1c8620d29091d90987228b6aceaadacc2c6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-04-13T16:46:34Z",
    "title_canon_sha256": "08d0ef45ccf52bd9af509150efbf47c36600d288f363c17481b79c7b591b64d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03253",
    "kind": "arxiv",
    "version": 1
  }
}