Pith Number

pith:BDUU2CXY

pith:2019:BDUU2CXYHSBH3TN6JUCDCP4QMC

not attested not anchored not stored refs pending

Unsupervised Learning Framework of Interest Point Via Properties Optimization

Cai Wen, Pei Yan, Yihua Tan, Yuan Tai, Yuan Xiao

arxiv:1907.11375 v1 · 2019-07-26 · 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{BDUU2CXYHSBH3TN6JUCDCP4QMC}

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	2026-05-17T23:39:29.320794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08e94d0af83c827dcdbe4d04313f906092c45de676d86dbf1e9afd6339b2c1c1

Aliases

arxiv: 1907.11375 · arxiv_version: 1907.11375v1 · doi: 10.48550/arxiv.1907.11375 · pith_short_12: BDUU2CXYHSBH · pith_short_16: BDUU2CXYHSBH3TN6 · pith_short_8: BDUU2CXY

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/BDUU2CXYHSBH3TN6JUCDCP4QMC \
  | 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: 08e94d0af83c827dcdbe4d04313f906092c45de676d86dbf1e9afd6339b2c1c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61daa32664f0ff37215b3d406e14e10161c92b42b3d8c8abffd7fe9b2f7cac9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-26T03:31:27Z",
    "title_canon_sha256": "35aaed743c79d1f551e6172a0c49e861a5c55ccc0801f480fd765f51c2a6552e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11375",
    "kind": "arxiv",
    "version": 1
  }
}