Pith Number

pith:BBNFSGZN

pith:2021:BBNFSGZN5UYLVDRAWLOX2HWDMQ

not attested not anchored not stored refs pending

Contrastive Object-level Pre-training with Spatial Noise Curriculum Learning

Chenhongyi Yang, Elliot J. Crowley, Lichao Huang

arxiv:2111.13651 v2 · 2021-11-26 · 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{BBNFSGZN5UYLVDRAWLOX2HWDMQ}

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	2026-07-05T03:35:51.526148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

085a591b2ded30ba8e20b2dd7d1ec36438439efb6ab265220677caa61d9bbd89

Aliases

arxiv: 2111.13651 · arxiv_version: 2111.13651v2 · doi: 10.48550/arxiv.2111.13651 · pith_short_12: BBNFSGZN5UYL · pith_short_16: BBNFSGZN5UYLVDRA · pith_short_8: BBNFSGZN

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/BBNFSGZN5UYLVDRAWLOX2HWDMQ \
  | 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: 085a591b2ded30ba8e20b2dd7d1ec36438439efb6ab265220677caa61d9bbd89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f622457117e913d688e83bdf57f5a079fc2c890a5aea5973006887c39169b668",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-11-26T18:29:57Z",
    "title_canon_sha256": "df5cc0e1cb707aca4f36255a2d8fb6166c2efd9519a86dd973968f705b049e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.13651",
    "kind": "arxiv",
    "version": 2
  }
}