Pith Number

pith:W62J4NWL

pith:2018:W62J4NWLWHY7HIQ4RXAWIBRYPA

not attested not anchored not stored refs pending

Lifelong Domain Word Embedding via Meta-Learning

Bing Liu, Hu Xu, Lei Shu, Philip S. Yu

arxiv:1805.09991 v1 · 2018-05-25 · 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{W62J4NWLWHY7HIQ4RXAWIBRYPA}

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	2026-05-18T00:14:58.567081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b49e36cbb1f1f3a21c8dc16406387823a6c1525ca9172f06cc24a03bf26691

Aliases

arxiv: 1805.09991 · arxiv_version: 1805.09991v1 · doi: 10.48550/arxiv.1805.09991 · pith_short_12: W62J4NWLWHY7 · pith_short_16: W62J4NWLWHY7HIQ4 · pith_short_8: W62J4NWL

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/W62J4NWLWHY7HIQ4RXAWIBRYPA \
  | 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: b7b49e36cbb1f1f3a21c8dc16406387823a6c1525ca9172f06cc24a03bf26691

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "713f15e81438a547909ea0694594449e256f0cf6ab7ab231efb29a26ad3a77ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-05-25T06:10:54Z",
    "title_canon_sha256": "ae412ff581c2053ccee1a477b32a13482c6b8ad94d3c7ef7987209718be1f1e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09991",
    "kind": "arxiv",
    "version": 1
  }
}