Pith Number

pith:JQW6YHJ4

pith:2026:JQW6YHJ4ZHQM2YPBVYS5COL2EB

not attested not anchored not stored refs pending

A Bayesian Filtering Approach for Learning Lagrangian Dynamics from Noisy Measurements

Kundan Kumar, Shreya Das, Simo S\"arkk\"a

arxiv:2606.31137 v1 · 2026-06-30 · cs.LG · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQW6YHJ4ZHQM2YPBVYS5COL2EB}

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	2026-07-01T01:17:30.244005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c2dec1d3cc9e0cd61e1ae25d1397a204b77984b9d91a9cb4c8735b4a88ccee8

Aliases

arxiv: 2606.31137 · arxiv_version: 2606.31137v1 · doi: 10.48550/arxiv.2606.31137 · pith_short_12: JQW6YHJ4ZHQM · pith_short_16: JQW6YHJ4ZHQM2YPB · pith_short_8: JQW6YHJ4

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/JQW6YHJ4ZHQM2YPBVYS5COL2EB \
  | 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: 4c2dec1d3cc9e0cd61e1ae25d1397a204b77984b9d91a9cb4c8735b4a88ccee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cd9a7524e31c6ed354f2fff261d55eebccee0a8a75b87f004dca642d6767b6d",
    "cross_cats_sorted": [
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-30T05:07:57Z",
    "title_canon_sha256": "7a6d218ca67cb1c8346e2e1c0b4485ac8cdfa862e6957d6059857d0cfcd31ceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31137",
    "kind": "arxiv",
    "version": 1
  }
}