Pith Number

pith:QP3ORP3P

pith:2017:QP3ORP3PH6DY65GHZGDLFFQZ3B

not attested not anchored not stored refs pending

Enhance Feature Discrimination for Unsupervised Hashing

Dang-Khoa Le Tan, Ngai-Man Cheung, Thanh-Toan Do, Tuan Hoang

arxiv:1704.01754 v2 · 2017-04-06 · cs.CV · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QP3ORP3PH6DY65GHZGDLFFQZ3B}

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	2026-05-18T00:40:58.182029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83f6e8bf6f3f878f74c7c986b29619d84aeeb31dbcebc62ea120397ab116ed39

Aliases

arxiv: 1704.01754 · arxiv_version: 1704.01754v2 · doi: 10.48550/arxiv.1704.01754 · pith_short_12: QP3ORP3PH6DY · pith_short_16: QP3ORP3PH6DY65GH · pith_short_8: QP3ORP3P

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/QP3ORP3PH6DY65GHZGDLFFQZ3B \
  | 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: 83f6e8bf6f3f878f74c7c986b29619d84aeeb31dbcebc62ea120397ab116ed39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4b2c525ed9280e1110dd6ae89df8a6d2316a0b52f4e6005b2ab188c014752bd",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-04-06T08:58:39Z",
    "title_canon_sha256": "d9edd84f12469e8a445b5312f098450012624d17ed4545ba38a5e6828ae12f55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01754",
    "kind": "arxiv",
    "version": 2
  }
}