Pith Number

pith:U3IMJFYZ

pith:2025:U3IMJFYZASW42U6BUZISGZGMUQ

not attested not anchored not stored refs pending

Few-shot Unknown Class Discovery of Hyperspectral Images with Prototype Learning and Clustering

Chen Zhang, Chun Liu, Wei Yang, Zheng Li, Zhuo Li

arxiv:2508.18075 v1 · 2025-08-25 · 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{U3IMJFYZASW42U6BUZISGZGMUQ}

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	2026-07-05T11:58:53.258773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6d0c4971904adcd53c1a6512364cca42d53d566766b1d26a20165a53d00bcba

Aliases

arxiv: 2508.18075 · arxiv_version: 2508.18075v1 · doi: 10.48550/arxiv.2508.18075 · pith_short_12: U3IMJFYZASW4 · pith_short_16: U3IMJFYZASW42U6B · pith_short_8: U3IMJFYZ

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/U3IMJFYZASW42U6BUZISGZGMUQ \
  | 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: a6d0c4971904adcd53c1a6512364cca42d53d566766b1d26a20165a53d00bcba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c6598138b6a1116c0c299616e768868b2ba44fc96eb072e6fc64924b2ef5f0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-08-25T14:40:06Z",
    "title_canon_sha256": "ef437a2a63fc563a6815bd92a4a645c924c40f9e0a45cebd2bbf3ca7a55f3acd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.18075",
    "kind": "arxiv",
    "version": 1
  }
}