Pith Number

pith:EDB7QXSO

pith:2015:EDB7QXSOFPKYUSVTLY5AL7D3JQ

not attested not anchored not stored refs pending

Optimal linear estimation under unknown nonlinear transform

Constantine Caramanis, Han Liu, Xinyang Yi, Zhaoran Wang

arxiv:1505.03257 v1 · 2015-05-13 · stat.ML · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDB7QXSOFPKYUSVTLY5AL7D3JQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:12:09.815711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20c3f85e4e2bd58a4ab35e3a05fc7b4c06f860fb7e3bb65b692dcfbf2f73da92

Aliases

arxiv: 1505.03257 · arxiv_version: 1505.03257v1 · doi: 10.48550/arxiv.1505.03257 · pith_short_12: EDB7QXSOFPKY · pith_short_16: EDB7QXSOFPKYUSVT · pith_short_8: EDB7QXSO

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/EDB7QXSOFPKYUSVTLY5AL7D3JQ \
  | 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: 20c3f85e4e2bd58a4ab35e3a05fc7b4c06f860fb7e3bb65b692dcfbf2f73da92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "020a82418c627648e88f25aa631bc3d24c5e4c8b3fb639f105160dd134824ba1",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-05-13T06:50:37Z",
    "title_canon_sha256": "4a405f7eb6f8c664407fbeac2c9b31d643f5e1be4e02bdd755f3ae97b9bd97c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03257",
    "kind": "arxiv",
    "version": 1
  }
}