Pith Number

pith:OMMRX62O

pith:2017:OMMRX62O4X6Z4675WOTV433AE6

not attested not anchored not stored refs pending

A GRU-based Encoder-Decoder Approach with Attention for Online Handwritten Mathematical Expression Recognition

Jianshu Zhang, Jun Du, Lirong Dai

arxiv:1712.03991 v1 · 2017-12-04 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OMMRX62O4X6Z4675WOTV433AE6}

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	2026-05-18T00:28:09.704836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73191bfb4ee5fd9e7bfdb3a75e6f60278331921e21d14c927eb7db3fccb69c9c

Aliases

arxiv: 1712.03991 · arxiv_version: 1712.03991v1 · doi: 10.48550/arxiv.1712.03991 · pith_short_12: OMMRX62O4X6Z · pith_short_16: OMMRX62O4X6Z4675 · pith_short_8: OMMRX62O

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/OMMRX62O4X6Z4675WOTV433AE6 \
  | 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: 73191bfb4ee5fd9e7bfdb3a75e6f60278331921e21d14c927eb7db3fccb69c9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed9f095ef25d04301885aa9b75fe1f3f607f559b9808bf82023726a19f2adefc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-12-04T02:20:25Z",
    "title_canon_sha256": "97fc13ed67d15e7a8e66639d23e334bdb16c8a4e236bce994a9f8d3889afbb63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.03991",
    "kind": "arxiv",
    "version": 1
  }
}