Pith Number

pith:QQNM7GDR

pith:2018:QQNM7GDR7UYS4HF7QQXETG7VIE

not attested not anchored not stored refs pending

Hierarchy-based Image Embeddings for Semantic Image Retrieval

Bj\"orn Barz, Joachim Denzler

arxiv:1809.09924 v4 · 2018-09-26 · cs.CV · cs.AI · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQNM7GDR7UYS4HF7QQXETG7VIE}

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	2026-05-17T23:39:58.161828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

841acf9871fd312e1cbf842e499bf541020069c0b2d07ac905f3e82ae571bce0

Aliases

arxiv: 1809.09924 · arxiv_version: 1809.09924v4 · doi: 10.48550/arxiv.1809.09924 · pith_short_12: QQNM7GDR7UYS · pith_short_16: QQNM7GDR7UYS4HF7 · pith_short_8: QQNM7GDR

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/QQNM7GDR7UYS4HF7QQXETG7VIE \
  | 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: 841acf9871fd312e1cbf842e499bf541020069c0b2d07ac905f3e82ae571bce0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "799466a5519b522e6c18fbbf04ab8f2fbfa169d39ed6bbac8f1df4cb686d3b8c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-26T11:58:19Z",
    "title_canon_sha256": "e73f20a1a3b7ec619437fd192fef7f62172bcd40166fb181e08625445f60188d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09924",
    "kind": "arxiv",
    "version": 4
  }
}