Pith Number

pith:AGZGZYZ2

pith:2018:AGZGZYZ2OM76D6R6QPHFCX7QF6

not attested not anchored not stored refs pending

SCK: A sparse coding based key-point detector

Ling Guan, Thanh Hong-Phuoc, Yifeng He

arxiv:1802.02647 v5 · 2018-02-07 · 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{AGZGZYZ2OM76D6R6QPHFCX7QF6}

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	2026-05-17T23:58:48.316564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01b26ce33a733fe1fa3e83ce515ff02f945bc86e8dd609ccbf66a13e2c589aa6

Aliases

arxiv: 1802.02647 · arxiv_version: 1802.02647v5 · doi: 10.48550/arxiv.1802.02647 · pith_short_12: AGZGZYZ2OM76 · pith_short_16: AGZGZYZ2OM76D6R6 · pith_short_8: AGZGZYZ2

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/AGZGZYZ2OM76D6R6QPHFCX7QF6 \
  | 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: 01b26ce33a733fe1fa3e83ce515ff02f945bc86e8dd609ccbf66a13e2c589aa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a30c032ef94cdefd04b97bfc5298055b9dc7a9b14fbc958f5ac59722b3e2acfa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-02-07T21:39:22Z",
    "title_canon_sha256": "445e9316956171601dd15a183abc7c2e1249e233cd31fb23f6d9962f6cfdb49e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02647",
    "kind": "arxiv",
    "version": 5
  }
}