Pith Number

pith:2TQLXBPA

pith:2020:2TQLXBPAWVEURXQM5PW2UUTDT5

not attested not anchored not stored refs pending

R-VGAE: Relational-variational Graph Autoencoder for Unsupervised Prerequisite Chain Learning

Alexander Fabbri, Dragomir Radev, Irene Li, Swapnil Hingmire

arxiv:2004.10610 v1 · 2020-04-22 · 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{2TQLXBPAWVEURXQM5PW2UUTDT5}

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	2026-07-05T00:57:30.633208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4e0bb85e0b54948de0cebedaa52639f66444b5f2352f193dbf7623a14fe0ea0

Aliases

arxiv: 2004.10610 · arxiv_version: 2004.10610v1 · doi: 10.48550/arxiv.2004.10610 · pith_short_12: 2TQLXBPAWVEU · pith_short_16: 2TQLXBPAWVEURXQM · pith_short_8: 2TQLXBPA

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/2TQLXBPAWVEURXQM5PW2UUTDT5 \
  | 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: d4e0bb85e0b54948de0cebedaa52639f66444b5f2352f193dbf7623a14fe0ea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5afe950416ed3fe5cea6033ce892d60c4fcdfa7c71421800f9c230b450061f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-04-22T14:48:03Z",
    "title_canon_sha256": "b79a9dc2a298dea24dfd99bf2e9f1ea7a18bab6998ac4016ea41d75078deb20c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.10610",
    "kind": "arxiv",
    "version": 1
  }
}