Pith Number

pith:2N7WNZ3B

pith:2023:2N7WNZ3BN2YESWH32IPHLQEGSF

not attested not anchored not stored refs pending

Sentence Identification with BOS and EOS Label Combinations

Hiroshi Kanayama, Issei Yoshida, Takuma Udagawa

arxiv:2301.13352 v1 · 2023-01-31 · 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{2N7WNZ3BN2YESWH32IPHLQEGSF}

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	2026-07-05T05:37:13.831005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d37f66e7616eb04958fbd21e75c0869155dca9b57dac9191dc531ea1dcd6c603

Aliases

arxiv: 2301.13352 · arxiv_version: 2301.13352v1 · doi: 10.48550/arxiv.2301.13352 · pith_short_12: 2N7WNZ3BN2YE · pith_short_16: 2N7WNZ3BN2YESWH3 · pith_short_8: 2N7WNZ3B

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/2N7WNZ3BN2YESWH32IPHLQEGSF \
  | 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: d37f66e7616eb04958fbd21e75c0869155dca9b57dac9191dc531ea1dcd6c603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8307874df1854bd43cd5b82bc0f9f916fa68182c3e0d83949d85ba6c44c52e30",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2023-01-31T01:03:07Z",
    "title_canon_sha256": "0642725f4ae5e7f5e9f2788f183a7aa207e406bf974d497043af0e057334ca54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.13352",
    "kind": "arxiv",
    "version": 1
  }
}