Pith Number

pith:LF74R3JV

pith:2025:LF74R3JV3LYDFC3L3RFOENF4RG

not attested not anchored not stored refs pending

Direct Estimation of Pediatric Heart Rate Variability from BOLD-fMRI: A Machine Learning Approach Using Dynamic Connectivity

Abdoljalil Addeh, G. Bruce Pike, Karen Ardila, M. Ethan MacDonald, Rebecca J Williams

arxiv:2502.06920 v1 · 2025-02-10 · eess.IV · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LF74R3JV3LYDFC3L3RFOENF4RG}

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	2026-07-05T10:12:30.327726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

597fc8ed35daf0328b6bdc4ae234bc89ae69a646dfbeb12f30f96d9ca14d783c

Aliases

arxiv: 2502.06920 · arxiv_version: 2502.06920v1 · doi: 10.48550/arxiv.2502.06920 · pith_short_12: LF74R3JV3LYD · pith_short_16: LF74R3JV3LYDFC3L · pith_short_8: LF74R3JV

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/LF74R3JV3LYDFC3L3RFOENF4RG \
  | 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: 597fc8ed35daf0328b6bdc4ae234bc89ae69a646dfbeb12f30f96d9ca14d783c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b9154e0c8ab5d818864b018e48362dc2a7330f96f9828032c03a3b35acb6f93",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2025-02-10T16:24:18Z",
    "title_canon_sha256": "f9e961e3ea9bc873c7b9c1e6fb75ff2d0cf50967db9a10c32b1fa57fed06a1d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.06920",
    "kind": "arxiv",
    "version": 1
  }
}