Pith Number

pith:GUTDD3JC

pith:2026:GUTDD3JCFNMVIPICHJO742WIIF

not attested not anchored not stored refs pending

Position: Evaluation of ECG Representations Must Be Fixed

Collin M. Stultz, Daniel Prakah-Asante, John Guttag, Zachary Berger

arxiv:2602.17531 v2 · 2026-02-19 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GUTDD3JCFNMVIPICHJO742WIIF}

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	2026-06-01T01:02:34.816837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

352631ed222b59543d023a5dfe6ac841719329c624322850d8b6af1f7b9697d2

Aliases

arxiv: 2602.17531 · arxiv_version: 2602.17531v2 · doi: 10.48550/arxiv.2602.17531 · pith_short_12: GUTDD3JCFNMV · pith_short_16: GUTDD3JCFNMVIPIC · pith_short_8: GUTDD3JC

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/GUTDD3JCFNMVIPICHJO742WIIF \
  | 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: 352631ed222b59543d023a5dfe6ac841719329c624322850d8b6af1f7b9697d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c36db1cef00478a069be20d72920fd4d2eb9691931f2ccfde0aefc47fdea42a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-19T16:42:46Z",
    "title_canon_sha256": "e9ff34f3d465048a0af8bf170080a3fc51919b89d327c1ac0b43d63b94ab00ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.17531",
    "kind": "arxiv",
    "version": 2
  }
}