Pith Number

pith:4HPGKT4W

pith:2025:4HPGKT4WUU7T4HMNND4Q7AJIRX

not attested not anchored not stored refs pending

Adaptive extended Kalman filter and laser link acquisition in the detection of gravitational waves in space

Haojie Li, Jianjun Jia, Jinke Yang, Pengcheng Wang, Xindong Liang, Xue Wang, Yidi Fan, Yong Xie, Yucheng Tang, Yun Kau Lau, Zhao Cui

arxiv:2508.21538 v1 · 2025-08-29 · astro-ph.IM · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HPGKT4WUU7T4HMNND4Q7AJIRX}

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	2026-07-05T12:01:36.332959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1de654f96a53f3e1d8d68f90f81288dfd4f4797be483a1bd0703dc0801f2ff0

Aliases

arxiv: 2508.21538 · arxiv_version: 2508.21538v1 · doi: 10.48550/arxiv.2508.21538 · pith_short_12: 4HPGKT4WUU7T · pith_short_16: 4HPGKT4WUU7T4HMN · pith_short_8: 4HPGKT4W

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/4HPGKT4WUU7T4HMNND4Q7AJIRX \
  | 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: e1de654f96a53f3e1d8d68f90f81288dfd4f4797be483a1bd0703dc0801f2ff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7580a55a6864af66ea2bd0232f2fe918fb57e324ef899f1e906f954c3243b483",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-08-29T11:48:21Z",
    "title_canon_sha256": "144e55d9b4c33d3fc216507e0add115cc15b31445e63ca985d5a0557db869184"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.21538",
    "kind": "arxiv",
    "version": 1
  }
}