Pith Number

pith:PY4YXJG7

pith:2026:PY4YXJG7DWQJ5X4ETFTCI6AJWW

not attested not anchored not stored refs pending

The Granularity Paradox: How Temporal Disaggregation Inflates In-Sample Fit and Compounds Out-of-Sample Error

Hugo Moreira

arxiv:2607.05450 v1 · 2026-07-05 · cs.LG · cs.AI · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PY4YXJG7DWQJ5X4ETFTCI6AJWW}

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	2026-07-08T01:18:10.358118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e398ba4df1da09edf849966247809b5ac23cbae83103c648f7bf2a698b573d7

Aliases

arxiv: 2607.05450 · arxiv_version: 2607.05450v1 · doi: 10.48550/arxiv.2607.05450 · pith_short_12: PY4YXJG7DWQJ · pith_short_16: PY4YXJG7DWQJ5X4E · pith_short_8: PY4YXJG7

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/PY4YXJG7DWQJ5X4ETFTCI6AJWW \
  | 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: 7e398ba4df1da09edf849966247809b5ac23cbae83103c648f7bf2a698b573d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4ae6b471a34857a3af9e93e05eabe5d395db843f5e55cb5ddfa1b13b9b43e24",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-05T11:52:08Z",
    "title_canon_sha256": "defc2933d30a25277a00bc0933096152a4a59a99cf601b4d7bea34630a0cb24c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05450",
    "kind": "arxiv",
    "version": 1
  }
}