Pith Number

pith:H3MJA4RC

pith:2019:H3MJA4RCE566ZZFGMM2F5UWT6G

not attested not anchored not stored refs pending

Multi-task Learning in Vector-valued Reproducing Kernel Banach Spaces with the $\ell^1$ Norm

Guohui Song, Haizhang Zhang, Rongrong Lin

arxiv:1901.01036 v1 · 2019-01-04 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3MJA4RCE566ZZFGMM2F5UWT6G}

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	2026-05-17T23:56:57.311476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed8907222277dece4a663345ed2d3f18e9ac99d65bb0568b6029e7237319048

Aliases

arxiv: 1901.01036 · arxiv_version: 1901.01036v1 · doi: 10.48550/arxiv.1901.01036 · pith_short_12: H3MJA4RCE566 · pith_short_16: H3MJA4RCE566ZZFG · pith_short_8: H3MJA4RC

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/H3MJA4RCE566ZZFGMM2F5UWT6G \
  | 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: 3ed8907222277dece4a663345ed2d3f18e9ac99d65bb0568b6029e7237319048

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1cd2f2a5f446cc8aa3c642ba3974446fe12a95c0a8380bb71fb17ba229aba26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-01-04T10:01:17Z",
    "title_canon_sha256": "2ac26ac9f933792ea6e69cfbda536b857e32e7c0b80b0a2ef8c47aea0ede5bcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01036",
    "kind": "arxiv",
    "version": 1
  }
}