Pith Number

pith:6QFECLXS

pith:2020:6QFECLXSKN2NUH4DHMLILSHPNU

not attested not anchored not stored refs pending

Fine-grained Angular Contrastive Learning with Coarse Labels

Eli Schwartz, Guy Bukchin, Kate Saenko, Leonid Karlinsky, Ori Shahar, Raja Giryes, Rogerio Feris

arxiv:2012.03515 v3 · 2020-12-07 · 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{6QFECLXSKN2NUH4DHMLILSHPNU}

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	2026-07-05T02:51:12.229167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f40a412ef25374da1f833b1685c8ef6d2b52a19c86acea7af35845ca781d6513

Aliases

arxiv: 2012.03515 · arxiv_version: 2012.03515v3 · doi: 10.48550/arxiv.2012.03515 · pith_short_12: 6QFECLXSKN2N · pith_short_16: 6QFECLXSKN2NUH4D · pith_short_8: 6QFECLXS

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/6QFECLXSKN2NUH4DHMLILSHPNU \
  | 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: f40a412ef25374da1f833b1685c8ef6d2b52a19c86acea7af35845ca781d6513

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c03719cf2a3168733eb830530600d6a66a6596247554ecb670510a1036dfc36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-12-07T08:09:02Z",
    "title_canon_sha256": "753d05c2e50826fd4c35658d484fae1a1a8d51c4adab8c67e913004ab8f89fe4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.03515",
    "kind": "arxiv",
    "version": 3
  }
}