Pith Number

pith:27FG7NZT

pith:2015:27FG7NZTFX3ULVML5V27CO652Q

not attested not anchored not stored refs pending

A Unified Tagging Solution: Bidirectional LSTM Recurrent Neural Network with Word Embedding

Frank K. Soong, Hai Zhao, Lei He, Peilu Wang, Yao Qian

arxiv:1511.00215 v1 · 2015-11-01 · 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{27FG7NZTFX3ULVML5V27CO652Q}

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	2026-05-18T01:28:12.914517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7ca6fb7332df745d58bed75f13bddd41e3dab5a4e4c6930240f11deac7f1ebf

Aliases

arxiv: 1511.00215 · arxiv_version: 1511.00215v1 · doi: 10.48550/arxiv.1511.00215 · pith_short_12: 27FG7NZTFX3U · pith_short_16: 27FG7NZTFX3ULVML · pith_short_8: 27FG7NZT

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/27FG7NZTFX3ULVML5V27CO652Q \
  | 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: d7ca6fb7332df745d58bed75f13bddd41e3dab5a4e4c6930240f11deac7f1ebf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c69e0006d5d17b365416e0c24864fa7ec5245fc14ddb3650db7de1d1c33b9b9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-11-01T07:59:48Z",
    "title_canon_sha256": "35bc08cdf176f28299bb0caf7487533215b085ba50fbb3084db3c10c853fd478"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00215",
    "kind": "arxiv",
    "version": 1
  }
}