Pith Number

pith:QQA3E77X

pith:2025:QQA3E77XW3RMZPVRN3SW2DAR6A

not attested not anchored not stored refs pending

From Sleep Staging to Spindle Detection: A Case Study on End-to-End Automated Sleep Analysis

Niklas Grieger, Philipp Ritter, Siamak Mehrkanoon, Stephan Bialonski

arxiv:2505.05371 v2 · 2025-05-08 · eess.SP · cs.LG · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQA3E77XW3RMZPVRN3SW2DAR6A}

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	2026-05-26T01:03:12.492798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8401b27ff7b6e2ccbeb16ee56d0c11f017e9819bb3e2849d22de191e65b4fae1

Aliases

arxiv: 2505.05371 · arxiv_version: 2505.05371v2 · doi: 10.48550/arxiv.2505.05371 · pith_short_12: QQA3E77XW3RM · pith_short_16: QQA3E77XW3RMZPVR · pith_short_8: QQA3E77X

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/QQA3E77XW3RMZPVRN3SW2DAR6A \
  | 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: 8401b27ff7b6e2ccbeb16ee56d0c11f017e9819bb3e2849d22de191e65b4fae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcd88a3d94dc5c942ac4ba3e1faf37e2cd1e5f31aa70910e6f841c78a84b2632",
    "cross_cats_sorted": [
      "cs.LG",
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-05-08T16:07:10Z",
    "title_canon_sha256": "c5098c04396b788be7d82f27ca00615ed99743aed7187e4098b1c7a997b63836"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.05371",
    "kind": "arxiv",
    "version": 2
  }
}