Pith Number

pith:SLWNDDMR

pith:2019:SLWNDDMR3R6DV3BQIVXA3FN7XW

not attested not anchored not stored refs pending

Unsupervised Dialog Structure Learning

Tiancheng Zhao, Weiyan Shi, Zhou Yu

arxiv:1904.03736 v2 · 2019-04-07 · 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{SLWNDDMR3R6DV3BQIVXA3FN7XW}

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	2026-05-17T23:42:32.353810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92ecd18d91dc7c3aec30456e0d95bfbd863fba831cd0534818389e8867a6ca3e

Aliases

arxiv: 1904.03736 · arxiv_version: 1904.03736v2 · doi: 10.48550/arxiv.1904.03736 · pith_short_12: SLWNDDMR3R6D · pith_short_16: SLWNDDMR3R6DV3BQ · pith_short_8: SLWNDDMR

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/SLWNDDMR3R6DV3BQIVXA3FN7XW \
  | 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: 92ecd18d91dc7c3aec30456e0d95bfbd863fba831cd0534818389e8867a6ca3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a865062fe1a16ee544e6e08e6ae0d6738e8fbc5ef47284fafe7547d206a776a8",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-04-07T20:28:47Z",
    "title_canon_sha256": "5f3a5b19dd4308f1743775dd77a38708e6fa7303dea45915efa7833ab785becb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03736",
    "kind": "arxiv",
    "version": 2
  }
}