Pith Number

pith:OMVGWCNQ

pith:2021:OMVGWCNQFBPVPHQI7L26XPEZBM

not attested not anchored not stored refs pending

CAST: Enhancing Code Summarization with Hierarchical Splitting and Reconstruction of Abstract Syntax Trees

Dongmei Zhang, Ensheng Shi, Hongbin Sun, Hongyu Zhang, Lun Du, Shi Han, Yanlin Wang

arxiv:2108.12987 v2 · 2021-08-30 · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OMVGWCNQFBPVPHQI7L26XPEZBM}

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	2026-07-05T03:36:13.166532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

732a6b09b0285f579e08faf5ebbc990b2e9f5c24448eb222bc027d04f0dc3aac

Aliases

arxiv: 2108.12987 · arxiv_version: 2108.12987v2 · doi: 10.48550/arxiv.2108.12987 · pith_short_12: OMVGWCNQFBPV · pith_short_16: OMVGWCNQFBPVPHQI · pith_short_8: OMVGWCNQ

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/OMVGWCNQFBPVPHQI7L26XPEZBM \
  | 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: 732a6b09b0285f579e08faf5ebbc990b2e9f5c24448eb222bc027d04f0dc3aac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f49ea449f2062bc33ca653e0c67bfa8d693986a0b339daad5d9cef10e23a503",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-08-30T04:23:18Z",
    "title_canon_sha256": "c45b8d929fe55a51c54f3883e8ac03d97614b7ba254813559d0c1ac1a293f047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12987",
    "kind": "arxiv",
    "version": 2
  }
}