Pith Number

pith:EB35BRJK

pith:2021:EB35BRJK2I65KG5NKZ7KWDUWFY

not attested not anchored not stored refs pending

ALIKE: Accurate and Lightweight Keypoint Detection and Descriptor Extraction

Jinyu MIao, Peter C. Y. Chen, Weihai Chen, Xiaoming Zhao, Xingming Wu, Zhengguo Li

arxiv:2112.02906 v2 · 2021-12-06 · 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{EB35BRJK2I65KG5NKZ7KWDUWFY}

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	2026-07-05T03:54:25.717132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2077d0c52ad23dd51bad567eab0e962e201cf7b58c486e8125ad2a2fcaba24f4

Aliases

arxiv: 2112.02906 · arxiv_version: 2112.02906v2 · doi: 10.48550/arxiv.2112.02906 · pith_short_12: EB35BRJK2I65 · pith_short_16: EB35BRJK2I65KG5N · pith_short_8: EB35BRJK

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/EB35BRJK2I65KG5NKZ7KWDUWFY \
  | 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: 2077d0c52ad23dd51bad567eab0e962e201cf7b58c486e8125ad2a2fcaba24f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd1a914207f3934236857c8f0179e59e22641aada6f5586725bc908a9db0c9e2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-12-06T10:10:30Z",
    "title_canon_sha256": "a3decd5568d496176c250d6998a26efb668cfce83ad07267139198a10ba30df9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.02906",
    "kind": "arxiv",
    "version": 2
  }
}