Pith Number

pith:KD6RD6HL

pith:2018:KD6RD6HLIOXCKXVEZPJ27ULIQK

not attested not anchored not stored refs pending

Gradient-based Optimization for Regression in the Functional Tensor-Train Format

Alex A. Gorodetsky, John D. Jakeman

arxiv:1801.00885 v2 · 2018-01-03 · stat.CO · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KD6RD6HLIOXCKXVEZPJ27ULIQK}

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	2026-05-18T00:04:59.812907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50fd11f8eb43ae255ea4cbd3afd16882b3168484673256ea0f15e85ca06c618a

Aliases

arxiv: 1801.00885 · arxiv_version: 1801.00885v2 · doi: 10.48550/arxiv.1801.00885 · pith_short_12: KD6RD6HLIOXC · pith_short_16: KD6RD6HLIOXCKXVE · pith_short_8: KD6RD6HL

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/KD6RD6HLIOXCKXVEZPJ27ULIQK \
  | 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: 50fd11f8eb43ae255ea4cbd3afd16882b3168484673256ea0f15e85ca06c618a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c39fef791d82249c83860a4886cbc2c7cf661b6945a9b3f29d6e9f6da7d3b7c3",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2018-01-03T02:34:14Z",
    "title_canon_sha256": "b42b0a3229225a4be8d1a07e80e6814fcf1149ae3c1130a465e4c9cabd4e5a0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00885",
    "kind": "arxiv",
    "version": 2
  }
}