Pith Number

pith:OJLEUJQ4

pith:2021:OJLEUJQ4PTDWSGIU66B3VUS2MM

not attested not anchored not stored refs pending

CAM-loss: Towards Learning Spatially Discriminative Feature Representations

Chaofei Wang, Gao Huang, Jiayu Xiao, Qisen Yang, Shiji Song, Yizeng Han

arxiv:2109.01359 v2 · 2021-09-03 · 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{OJLEUJQ4PTDWSGIU66B3VUS2MM}

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	2026-07-05T04:02:56.092322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72564a261c7cc7691914f783bad25a63257b839a7f9a1d68c54ffb9360971cf0

Aliases

arxiv: 2109.01359 · arxiv_version: 2109.01359v2 · doi: 10.48550/arxiv.2109.01359 · pith_short_12: OJLEUJQ4PTDW · pith_short_16: OJLEUJQ4PTDWSGIU · pith_short_8: OJLEUJQ4

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/OJLEUJQ4PTDWSGIU66B3VUS2MM \
  | 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: 72564a261c7cc7691914f783bad25a63257b839a7f9a1d68c54ffb9360971cf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b37c7eb855a92686302e1cfbf21eb6a0fa97c8a20f7912e7f588cf6a6055da0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-03T08:04:17Z",
    "title_canon_sha256": "6680903b87bfc20053a0d4f208187729ef99ae858309811efc7b604a63da9860"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.01359",
    "kind": "arxiv",
    "version": 2
  }
}