Pith Number

pith:YMB2JT22

pith:2021:YMB2JT22FY3CKVTKF4FGL6F6UU

not attested not anchored not stored refs pending

Robust Learning for Text Classification with Multi-source Noise Simulation and Hard Example Mining

Guowei Xu, Weiping Fu, Wenbiao Ding, Zhongqin Wu, Zitao Liu

arxiv:2107.07113 v1 · 2021-07-15 · 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{YMB2JT22FY3CKVTKF4FGL6F6UU}

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	2026-07-05T02:58:10.868017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c303a4cf5a2e3625566a2f0a65f8bea50a99de5bcd93861bc5009a224a615a8f

Aliases

arxiv: 2107.07113 · arxiv_version: 2107.07113v1 · doi: 10.48550/arxiv.2107.07113 · pith_short_12: YMB2JT22FY3C · pith_short_16: YMB2JT22FY3CKVTK · pith_short_8: YMB2JT22

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/YMB2JT22FY3CKVTKF4FGL6F6UU \
  | 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: c303a4cf5a2e3625566a2f0a65f8bea50a99de5bcd93861bc5009a224a615a8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "704fe69fcdc1c51bcec7e34ef88b32a7130aa3ac145974aff26eba48a2aa6f11",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-07-15T04:39:22Z",
    "title_canon_sha256": "a98defc85064a3a8cba34ba75a813f1e5541a08a5139ace28604e77c8d5ab0e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.07113",
    "kind": "arxiv",
    "version": 1
  }
}