Pith Number

pith:4VTA7EU6

pith:2021:4VTA7EU6B76SNIYCAPDRJDNQO6

not attested not anchored not stored refs pending

Alleviating Exposure Bias via Contrastive Learning for Abstractive Text Summarization

Shichao Sun, Wenjie Li

arxiv:2108.11846 v1 · 2021-08-26 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VTA7EU6B76SNIYCAPDRJDNQO6}

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	2026-07-05T03:09:10.361345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5660f929e0ffd26a30203c7148db0779401c75a319f3680ec69e43e235396f5

Aliases

arxiv: 2108.11846 · arxiv_version: 2108.11846v1 · doi: 10.48550/arxiv.2108.11846 · pith_short_12: 4VTA7EU6B76S · pith_short_16: 4VTA7EU6B76SNIYC · pith_short_8: 4VTA7EU6

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/4VTA7EU6B76SNIYCAPDRJDNQO6 \
  | 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: e5660f929e0ffd26a30203c7148db0779401c75a319f3680ec69e43e235396f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f532f0864bbda53ce52e78da4a838dae049c38743b1d76a5e841b30c053f430b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-08-26T15:14:44Z",
    "title_canon_sha256": "2a09fd6ae8dc4224d57c8d21152c80366825bc1155b3bb5ea3142509f7dc7acf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.11846",
    "kind": "arxiv",
    "version": 1
  }
}