Pith Number

pith:W5YEYHVM

pith:2015:W5YEYHVMWM2BXR36GDGRFBGW6Z

not attested not anchored not stored refs pending

Subset Feature Learning for Fine-Grained Category Classification

Christopher Mccool, Conrad Sanderson, Peter Corke, Zongyuan Ge

arxiv:1505.02269 v1 · 2015-05-09 · 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{W5YEYHVMWM2BXR36GDGRFBGW6Z}

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	2026-05-18T02:16:19.359082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7704c1eacb3341bc77e30cd1284d6f66a2cf6942aaaee9cfd2a8867a58de52b

Aliases

arxiv: 1505.02269 · arxiv_version: 1505.02269v1 · doi: 10.48550/arxiv.1505.02269 · pith_short_12: W5YEYHVMWM2B · pith_short_16: W5YEYHVMWM2BXR36 · pith_short_8: W5YEYHVM

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/W5YEYHVMWM2BXR36GDGRFBGW6Z \
  | 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: b7704c1eacb3341bc77e30cd1284d6f66a2cf6942aaaee9cfd2a8867a58de52b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c55ad49522319f2590d043c9f163f5c8d812700e85b4bd04039e567ae8dfcd64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-05-09T13:25:24Z",
    "title_canon_sha256": "3e5adcffe49eca12dee626c6950691a28119a7afd540d4e4de1bba7d75dd4181"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02269",
    "kind": "arxiv",
    "version": 1
  }
}