Pith Number

pith:U56DAVJF

pith:2025:U56DAVJFY5DHRA7G6KCN7FU5WA

not attested not anchored not stored refs pending

FM-LC: A Hierarchical Framework for Urban Flood Mapping by Land Cover Identification Models

Hua Wei, Longchao Da, Xin Hong

arxiv:2507.19818 v1 · 2025-07-26 · 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{U56DAVJFY5DHRA7G6KCN7FU5WA}

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	2026-07-05T11:43:42.641561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a77c305525c7467883e6f284df969db02acddd58f34424e4c4625c11192e8fff

Aliases

arxiv: 2507.19818 · arxiv_version: 2507.19818v1 · doi: 10.48550/arxiv.2507.19818 · pith_short_12: U56DAVJFY5DH · pith_short_16: U56DAVJFY5DHRA7G · pith_short_8: U56DAVJF

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/U56DAVJFY5DHRA7G6KCN7FU5WA \
  | 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: a77c305525c7467883e6f284df969db02acddd58f34424e4c4625c11192e8fff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0f7ace9c78d2b9c49b95bf3e2c08068b33e80f821a80faf84679d8ea544ab45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-07-26T06:25:53Z",
    "title_canon_sha256": "733e069f951ae0b92c44b83904d99e9eb9bfde199f027289d0f0ef5c25f28b6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.19818",
    "kind": "arxiv",
    "version": 1
  }
}