Pith Number

pith:W3I46SQV

pith:2019:W3I46SQVSBY5CNLNEBJ6N4NUHX

not attested not anchored not stored refs pending

OpBerg: Discovering causal sentences using optimal alignments

Alcino J. Silva, Alexej Abyzov, Justin Wood, Nicholas J. Matiasz, Wei Wang, William Hsu

arxiv:1904.02032 v1 · 2019-04-03 · cs.IR · 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{W3I46SQVSBY5CNLNEBJ6N4NUHX}

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	2026-05-17T23:49:28.937747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6d1cf4a159071d1356d2053e6f1b43de29525f2311f10c4ebdf17c9ecd899d1

Aliases

arxiv: 1904.02032 · arxiv_version: 1904.02032v1 · doi: 10.48550/arxiv.1904.02032 · pith_short_12: W3I46SQVSBY5 · pith_short_16: W3I46SQVSBY5CNLN · pith_short_8: W3I46SQV

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/W3I46SQVSBY5CNLNEBJ6N4NUHX \
  | 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: b6d1cf4a159071d1356d2053e6f1b43de29525f2311f10c4ebdf17c9ecd899d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3662bb37986078aeb194af172af2fb12bc400ea4309dfcbf64c085777d4ffd58",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-04-03T14:36:49Z",
    "title_canon_sha256": "970c7792c06945f71c63668d9ab5129fdf5e846d6026fe4423110a0c14e5ea01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02032",
    "kind": "arxiv",
    "version": 1
  }
}