Pith Number

pith:FEENK34N

pith:2019:FEENK34NPIWBNBCJDLPQLW6UOB

not attested not anchored not stored refs pending

Sketch-Driven Regular Expression Generation from Natural Language and Examples

Greg Durrett, Isil Dillig, Qiaochu Chen, Xinyu Wang, Xi Ye

arxiv:1908.05848 v2 · 2019-08-16 · 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{FEENK34NPIWBNBCJDLPQLW6UOB}

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	2026-07-05T01:24:15.106228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2908d56f8d7a2c1684491adf05dbd47071716e6c5aad727d82c3e633c5e411be

Aliases

arxiv: 1908.05848 · arxiv_version: 1908.05848v2 · doi: 10.48550/arxiv.1908.05848 · pith_short_12: FEENK34NPIWB · pith_short_16: FEENK34NPIWBNBCJ · pith_short_8: FEENK34N

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/FEENK34NPIWBNBCJDLPQLW6UOB \
  | 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: 2908d56f8d7a2c1684491adf05dbd47071716e6c5aad727d82c3e633c5e411be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59797a496097e6592a3a22a830660940139770f4834738552f44c99f1f2730b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-16T05:09:57Z",
    "title_canon_sha256": "977df00c7ac41124c8809d8529e19583c351f969f510374a3c5af312fa83b4b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05848",
    "kind": "arxiv",
    "version": 2
  }
}