Pith Number

pith:YS4HQN3F

pith:2026:YS4HQN3FSVB7B4ZA227XDFF37O

not attested not anchored not stored refs pending

FreCast: Refining Radar Echo Intensity via Phase-Preserving Amplitude Residual Diffusion for Precipitation Nowcasting

Heping Fang, Kaicheng Mao, Peiguang Zhang, Peng Yang, Zihuai Yin

arxiv:2608.08436 v1 · 2026-08-09 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YS4HQN3FSVB7B4ZA227XDFF37O}

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	2026-08-11T01:22:38.072278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4b87837659543f0f320d6bf7194bbfba497232cfa988abf1e51a6af1f53c100

Aliases

arxiv: 2608.08436 · arxiv_version: 2608.08436v1 · doi: 10.48550/arxiv.2608.08436 · pith_short_12: YS4HQN3FSVB7 · pith_short_16: YS4HQN3FSVB7B4ZA · pith_short_8: YS4HQN3F

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/YS4HQN3FSVB7B4ZA227XDFF37O \
  | 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: c4b87837659543f0f320d6bf7194bbfba497232cfa988abf1e51a6af1f53c100

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "001c17066c9588ba249e88f9fe282fc877f9f224edaf370146e97160518967ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-08-09T03:08:25Z",
    "title_canon_sha256": "4c4c6ac8e7d96ae6878bdf89620e749dcf8f6bce86646266b8c4e5507ee22347"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.08436",
    "kind": "arxiv",
    "version": 1
  }
}