Pith Number

pith:2EFT6OAP

pith:2021:2EFT6OAPZJJXWNVRSZZ7R4FA4V

not attested not anchored not stored refs pending

CL4AC: A Contrastive Loss for Audio Captioning

H Lilian Tang, Mark D. Plumbley, Qiushi Huang, Tom Ko, Wenwu Wang, Xinhao Mei, Xubo Liu

arxiv:2107.09990 v3 · 2021-07-21 · eess.AS · cs.AI · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2EFT6OAPZJJXWNVRSZZ7R4FA4V}

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	2026-07-05T03:33:46.164299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d10b3f380fca537b36b19673f8f0a0e568edd7ae451629dcfbf963d67d8fb7f1

Aliases

arxiv: 2107.09990 · arxiv_version: 2107.09990v3 · doi: 10.48550/arxiv.2107.09990 · pith_short_12: 2EFT6OAPZJJX · pith_short_16: 2EFT6OAPZJJXWNVR · pith_short_8: 2EFT6OAP

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/2EFT6OAPZJJXWNVRSZZ7R4FA4V \
  | 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: d10b3f380fca537b36b19673f8f0a0e568edd7ae451629dcfbf963d67d8fb7f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "def759eff0ccf53fbe4e3dc48c6b44278d4c0c28abb31a698be117f280de2cce",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.SD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2021-07-21T10:13:02Z",
    "title_canon_sha256": "ff537862f83591a40cc0002a97d9c6697709fd4ca66f04a2acdc2fa56553dfde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09990",
    "kind": "arxiv",
    "version": 3
  }
}