Pith Number

pith:N3QRHZJK

pith:2021:N3QRHZJKL4ZQ4U4WSTR5OX66LV

not attested not anchored not stored refs pending

SpectralFormer: Rethinking Hyperspectral Image Classification with Transformers

Antonio Plaza, Bing Zhang, Danfeng Hong, Jing Yao, Jocelyn Chanussot, Lianru Gao, Zhu Han

arxiv:2107.02988 v2 · 2021-07-07 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3QRHZJKL4ZQ4U4WSTR5OX66LV}

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	2026-07-05T04:19:33.312381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ee113e52a5f330e539694e3d75fde5d48bb7cce30a46d4159d631c167fd461d

Aliases

arxiv: 2107.02988 · arxiv_version: 2107.02988v2 · doi: 10.48550/arxiv.2107.02988 · pith_short_12: N3QRHZJKL4ZQ · pith_short_16: N3QRHZJKL4ZQ4U4W · pith_short_8: N3QRHZJK

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/N3QRHZJKL4ZQ4U4WSTR5OX66LV \
  | 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: 6ee113e52a5f330e539694e3d75fde5d48bb7cce30a46d4159d631c167fd461d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39ce8a4eb4ec93a4c4edaf01035e29ac5295dc97b3967c9a323b6d2e304fcb4a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-07-07T02:59:21Z",
    "title_canon_sha256": "f7e90c08b51f1f57a46dc0557acc13d4ff35867d45e6e59922c598a54b02f9d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.02988",
    "kind": "arxiv",
    "version": 2
  }
}