Pith Number

pith:O6KFBTRA

pith:2021:O6KFBTRAONAIAU7O2LQIK7L4OB

not attested not anchored not stored refs pending

Bidirectional Machine Reading Comprehension for Aspect Sentiment Triplet Extraction

Jie Liu, Shaowei Chen, Yuelin Wang, Yu Wang

arxiv:2103.07665 v1 · 2021-03-13 · 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{O6KFBTRAONAIAU7O2LQIK7L4OB}

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	2026-07-05T02:22:43.687926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

779450ce2073408053eed2e0857d7c7059f9921fc8a0601b7bb43fdc6aff4a6f

Aliases

arxiv: 2103.07665 · arxiv_version: 2103.07665v1 · doi: 10.48550/arxiv.2103.07665 · pith_short_12: O6KFBTRAONAI · pith_short_16: O6KFBTRAONAIAU7O · pith_short_8: O6KFBTRA

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/O6KFBTRAONAIAU7O2LQIK7L4OB \
  | 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: 779450ce2073408053eed2e0857d7c7059f9921fc8a0601b7bb43fdc6aff4a6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c566c389e3d350574636dc38a46286aefb66fbce8c95f0633562eee356d057a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-03-13T09:30:47Z",
    "title_canon_sha256": "32aa937689acaa3be0b23ecc9b5ee9a9049d95ce80fe50f973db9b7bde570f4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.07665",
    "kind": "arxiv",
    "version": 1
  }
}