Pith Number

pith:XQNF2BN6

pith:2022:XQNF2BN6L2KBQHURLE4EZHO7G3

not attested not anchored not stored refs pending

Sim2Real Object-Centric Keypoint Detection and Description

Chao Yang, Chengliang Zhong, Fuchun Sun, Huaping Liu, Jinshan Qi, Wenbing Huang, Xiaodong Mu

arxiv:2202.00448 v2 · 2022-02-01 · cs.CV · cs.AI · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XQNF2BN6L2KBQHURLE4EZHO7G3}

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	2026-07-05T03:53:51.726142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc1a5d05be5e94181e9159384c9ddf36fc37e8125c5d6880dd5bbaa550b9b508

Aliases

arxiv: 2202.00448 · arxiv_version: 2202.00448v2 · doi: 10.48550/arxiv.2202.00448 · pith_short_12: XQNF2BN6L2KB · pith_short_16: XQNF2BN6L2KBQHUR · pith_short_8: XQNF2BN6

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/XQNF2BN6L2KBQHURLE4EZHO7G3 \
  | 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: bc1a5d05be5e94181e9159384c9ddf36fc37e8125c5d6880dd5bbaa550b9b508

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f03bfba49bc46e7d01d78ea41fa3ac3e509cb3c378f689b4bc24e7d7574168c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-02-01T15:00:20Z",
    "title_canon_sha256": "f7f4af759631a52146c9d012b533618632edb358b243ed50325ef98d73a966a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.00448",
    "kind": "arxiv",
    "version": 2
  }
}