Pith Number

pith:TKIR4GUV

pith:2020:TKIR4GUVRY6EH653Z53EXWNI6Q

not attested not anchored not stored refs pending

NatCat: Weakly Supervised Text Classification with Naturally Annotated Resources

Karl Stratos, Kevin Gimpel, Zewei Chu

arxiv:2009.14335 v2 · 2020-09-29 · 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{TKIR4GUVRY6EH653Z53EXWNI6Q}

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	2026-07-05T03:15:28.839847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a911e1a958e3c43fbbbcf764bd9a8f412fe14abd24c3aab621acf5869d5c936

Aliases

arxiv: 2009.14335 · arxiv_version: 2009.14335v2 · doi: 10.48550/arxiv.2009.14335 · pith_short_12: TKIR4GUVRY6E · pith_short_16: TKIR4GUVRY6EH653 · pith_short_8: TKIR4GUV

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/TKIR4GUVRY6EH653Z53EXWNI6Q \
  | 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: 9a911e1a958e3c43fbbbcf764bd9a8f412fe14abd24c3aab621acf5869d5c936

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36a63cde49a613061109a3851df5486b4acd80247904d7af52aed15675b7ea14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-09-29T22:49:15Z",
    "title_canon_sha256": "79a477717ebaad5aa3efd5d5cef4e976b06950c75c59d5f6402c85939bdb0e00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.14335",
    "kind": "arxiv",
    "version": 2
  }
}