Pith Number

pith:4H2IU64U

pith:2013:4H2IU64U2345SNENHX5WLQRTWS

not attested not anchored not stored refs pending

Image Retrieval using Histogram Factorization and Contextual Similarity Learning

Liu Liang

arxiv:1304.1995 v2 · 2013-04-07 · cs.CV · cs.DB · 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{4H2IU64U2345SNENHX5WLQRTWS}

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	2026-05-18T03:28:32.639590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f48a7b94d6f9d9348d3dfb65c233b4944401c5a38e0f456d21772053dda41f

Aliases

arxiv: 1304.1995 · arxiv_version: 1304.1995v2 · doi: 10.48550/arxiv.1304.1995 · pith_short_12: 4H2IU64U2345 · pith_short_16: 4H2IU64U2345SNEN · pith_short_8: 4H2IU64U

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/4H2IU64U2345SNENHX5WLQRTWS \
  | 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: e1f48a7b94d6f9d9348d3dfb65c233b4944401c5a38e0f456d21772053dda41f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10a0ba430d765908e2725eb86a92227dbb0f9c5928f29bc7b0ef106bc31b6e50",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-04-07T13:15:17Z",
    "title_canon_sha256": "1d4d42fa261d8388420e11f95a6938a5c51198fb244f3b9a1a9fe21c9698a376"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1995",
    "kind": "arxiv",
    "version": 2
  }
}