Pith Number

pith:GOLZQHJD

pith:2021:GOLZQHJDHWTQFETW4QJVV34EQL

not attested not anchored not stored refs pending

DetCo: Unsupervised Contrastive Learning for Object Detection

Enze Xie, Hang Xu, Jian Ding, Peize Sun, Ping Luo, Wenhai Wang, Xiaohang Zhan, Zhenguo Li

arxiv:2102.04803 v2 · 2021-02-09 · 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{GOLZQHJDHWTQFETW4QJVV34EQL}

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	2026-07-05T03:00:08.272166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3397981d233da7029276e4135aef8482f9edc31fa90622542dd920ea3d14eb48

Aliases

arxiv: 2102.04803 · arxiv_version: 2102.04803v2 · doi: 10.48550/arxiv.2102.04803 · pith_short_12: GOLZQHJDHWTQ · pith_short_16: GOLZQHJDHWTQFETW · pith_short_8: GOLZQHJD

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/GOLZQHJDHWTQFETW4QJVV34EQL \
  | 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: 3397981d233da7029276e4135aef8482f9edc31fa90622542dd920ea3d14eb48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da3cd531926bfc7784fac1c181462b1709af33a9cd81fe16110bccce166be75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-02-09T12:47:20Z",
    "title_canon_sha256": "3589ca1a7991a5cadc53bcbf65ca22dafd57d8eb50644ea4b98626d23a66e2be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04803",
    "kind": "arxiv",
    "version": 2
  }
}