Pith Number

pith:OOXPFJYY

pith:2025:OOXPFJYYMHX3VL6VB2KVR4SEE5

not attested not anchored not stored refs pending

Bridging the Prediction Error Method and Subspace Identification: A Weighted Null Space Fitting Method

H\r{a}kan Hjalmarsson, Jiabao He, S. Joe Qin

arxiv:2510.02529 v2 · 2025-10-02 · stat.ME · cs.SY · eess.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{OOXPFJYYMHX3VL6VB2KVR4SEE5}

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	2026-07-08T01:19:07.295181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73aef2a71861efbaafd50e9558f244276616ce5e8eb3e74ab1f1c73b70dba5d9

Aliases

arxiv: 2510.02529 · arxiv_version: 2510.02529v2 · doi: 10.48550/arxiv.2510.02529 · pith_short_12: OOXPFJYYMHX3 · pith_short_16: OOXPFJYYMHX3VL6V · pith_short_8: OOXPFJYY

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/OOXPFJYYMHX3VL6VB2KVR4SEE5 \
  | 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: 73aef2a71861efbaafd50e9558f244276616ce5e8eb3e74ab1f1c73b70dba5d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48b25f6d4f1a59afe87368dc67a346cefababbfe3c24b4e346f4339acddc10fd",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-10-02T19:58:25Z",
    "title_canon_sha256": "42eb21d566e604da0471517733b5f922eb9d4d16befb964fc577a40f5308facc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.02529",
    "kind": "arxiv",
    "version": 2
  }
}