Pith Number

pith:CFDB26ZN

pith:2026:CFDB26ZNXHWKZC4SW2I55EKPDL

not attested not anchored not stored refs pending

Learning to Refine: Spectral-Decoupled Iterative Refinement Framework for Precipitation Nowcasting

Chen Zhao, Danyang Peng, Fanfan Ji, Xiao-Tong Yuan, Yunlong Zhou

arxiv:2606.02661 v1 · 2026-06-01 · 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{CFDB26ZNXHWKZC4SW2I55EKPDL}

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	2026-06-03T00:05:05.829806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11461d7b2db9ecac8b92b691de914f1ad03f6ed655d138b451aa55379089b35c

Aliases

arxiv: 2606.02661 · arxiv_version: 2606.02661v1 · doi: 10.48550/arxiv.2606.02661 · pith_short_12: CFDB26ZNXHWK · pith_short_16: CFDB26ZNXHWKZC4S · pith_short_8: CFDB26ZN

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/CFDB26ZNXHWKZC4SW2I55EKPDL \
  | 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: 11461d7b2db9ecac8b92b691de914f1ad03f6ed655d138b451aa55379089b35c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d855037b40f5d2cde97133830a35f9a674c8d8d666a1eff55f01755f05f58cb3",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2026-06-01T07:34:30Z",
    "title_canon_sha256": "3904655724ee91a2bb54798814167ff17634f68afc9e1c08b0531a5a57bae30b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02661",
    "kind": "arxiv",
    "version": 1
  }
}