Pith Number

pith:4VYU3ULD

pith:2021:4VYU3ULDSN2BZ6CHFHGAEJ4EDJ

not attested not anchored not stored refs pending

Contrastive Learning for Fair Representations

Aili Shen, Lea Frermann, Timothy Baldwin, Trevor Cohn, Xudong Han

arxiv:2109.10645 v1 · 2021-09-22 · cs.CL · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VYU3ULDSN2BZ6CHFHGAEJ4EDJ}

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.

Cited by

1 paper in Pith

Who Needs Labels? Adapting Vision Foundation Models With the Metadata You Already Have

Receipt and verification

First computed	2026-07-05T03:16:38.590500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5714dd16393741cf84729cc0227841a65e4bc37aa7e6857ed778e9b2f58a832

Aliases

arxiv: 2109.10645 · arxiv_version: 2109.10645v1 · doi: 10.48550/arxiv.2109.10645 · pith_short_12: 4VYU3ULDSN2B · pith_short_16: 4VYU3ULDSN2BZ6CH · pith_short_8: 4VYU3ULD

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/4VYU3ULDSN2BZ6CHFHGAEJ4EDJ \
  | 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: e5714dd16393741cf84729cc0227841a65e4bc37aa7e6857ed778e9b2f58a832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e80293bf54a5cbf8ba8679311c8200ccad70858bb03d8ed17ee3b25b5d33d96a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-22T10:47:51Z",
    "title_canon_sha256": "389d55b8579f38df5f72a9e0e811822d3b0be77b58024134b6e33b3a13147344"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.10645",
    "kind": "arxiv",
    "version": 1
  }
}