Pith Number

pith:ZYK2L72N

pith:2019:ZYK2L72NVNNRHQWIB7O5RJMTAT

not attested not anchored not stored refs pending

Cooperative Embeddings for Instance, Attribute and Category Retrieval

Arnold W.M. Smeulders, Cees G.M. Snoek, William Thong

arxiv:1904.01421 v1 · 2019-04-02 · 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{ZYK2L72NVNNRHQWIB7O5RJMTAT}

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	2026-05-17T23:49:34.664773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce15a5ff4dab5b13c2c80fddd8a59304c79a843fcdc17010f3ddd8a1b627cf92

Aliases

arxiv: 1904.01421 · arxiv_version: 1904.01421v1 · doi: 10.48550/arxiv.1904.01421 · pith_short_12: ZYK2L72NVNNR · pith_short_16: ZYK2L72NVNNRHQWI · pith_short_8: ZYK2L72N

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/ZYK2L72NVNNRHQWIB7O5RJMTAT \
  | 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: ce15a5ff4dab5b13c2c80fddd8a59304c79a843fcdc17010f3ddd8a1b627cf92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "418fd439764b511ea05f4283d190d84d6d01a1d728a65c646dc95b7bcc2f88c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-02T13:55:47Z",
    "title_canon_sha256": "9febb218b12bb47914a4351f9242ec99ec58f17f392366a877a68a8fcb8ced53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01421",
    "kind": "arxiv",
    "version": 1
  }
}