Pith Number

pith:JNF6L4ZN

pith:2021:JNF6L4ZNRA3Y4WSHYMMRQVNLHE

not attested not anchored not stored refs pending

Mutual Contrastive Learning for Visual Representation Learning

Chuanguang Yang, Linhang Cai, Yongjun Xu, Zhulin An

arxiv:2104.12565 v2 · 2021-04-26 · 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{JNF6L4ZNRA3Y4WSHYMMRQVNLHE}

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	2026-07-05T03:48:40.877621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b4be5f32d88378e5a47c3191855ab393e115e59589bab57a80b182539f0e9a8

Aliases

arxiv: 2104.12565 · arxiv_version: 2104.12565v2 · doi: 10.48550/arxiv.2104.12565 · pith_short_12: JNF6L4ZNRA3Y · pith_short_16: JNF6L4ZNRA3Y4WSH · pith_short_8: JNF6L4ZN

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/JNF6L4ZNRA3Y4WSHYMMRQVNLHE \
  | 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: 4b4be5f32d88378e5a47c3191855ab393e115e59589bab57a80b182539f0e9a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d6346c3f6112ed495636195df38e3dca1deb2b98db5f343af60e91c6986ddc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-26T13:32:33Z",
    "title_canon_sha256": "79ce8fb26c391179e3d773fb8f8bead76204b5ebbf0bebcd1cefbc3db8daf7ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.12565",
    "kind": "arxiv",
    "version": 2
  }
}