Pith Number

pith:YWSHF4UD

pith:2021:YWSHF4UDOPOUKYHAI5OFXJNK7E

not attested not anchored not stored refs pending

Efficient Variational Graph Autoencoders for Unsupervised Cross-domain Prerequisite Chains

Dragomir Radev, Irene Li, Vanessa Yan

arxiv:2109.08722 v5 · 2021-09-17 · cs.LG · 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{YWSHF4UDOPOUKYHAI5OFXJNK7E}

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	2026-07-05T03:27:35.788295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5a472f28373dd4560e0475c5ba5aaf9087ba317aa0a8c739602cd163804c58c

Aliases

arxiv: 2109.08722 · arxiv_version: 2109.08722v5 · doi: 10.48550/arxiv.2109.08722 · pith_short_12: YWSHF4UDOPOU · pith_short_16: YWSHF4UDOPOUKYHA · pith_short_8: YWSHF4UD

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/YWSHF4UDOPOUKYHAI5OFXJNK7E \
  | 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: c5a472f28373dd4560e0475c5ba5aaf9087ba317aa0a8c739602cd163804c58c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5e94d964598ac2e0f50ffa4bc4eff09a16a4466a2f6ee9154878caa1a673187",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-09-17T19:07:27Z",
    "title_canon_sha256": "9816f7f7e7d44e058f499c9117971ae3a9dbc543c193f1a67cf4ad1169ca9a0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.08722",
    "kind": "arxiv",
    "version": 5
  }
}