Pith Number

pith:TE5B5QX3

pith:2018:TE5B5QX3JFJJJGKC7S2KDIX65P

not attested not anchored not stored refs pending

On the connection between supervised learning and linear inverse problems

Federico Benvenuto, Sabrina Guastavino

arxiv:1807.11406 v1 · 2018-07-30 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TE5B5QX3JFJJJGKC7S2KDIX65P}

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	2026-05-18T00:09:31.969095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

993a1ec2fb4952949942fcb4a1a2feebc50cca6ccaecdc5e59a15b1cbd8c0476

Aliases

arxiv: 1807.11406 · arxiv_version: 1807.11406v1 · doi: 10.48550/arxiv.1807.11406 · pith_short_12: TE5B5QX3JFJJ · pith_short_16: TE5B5QX3JFJJJGKC · pith_short_8: TE5B5QX3

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/TE5B5QX3JFJJJGKC7S2KDIX65P \
  | 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: 993a1ec2fb4952949942fcb4a1a2feebc50cca6ccaecdc5e59a15b1cbd8c0476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94e163bbf9f11daff9c5900fe858e016a952f63894095e784e7562a9f227d570",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-30T15:57:03Z",
    "title_canon_sha256": "e6d1c62c4b06b9d93138c2a867efbb0076533809b3eac79fa4820b8056f746e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11406",
    "kind": "arxiv",
    "version": 1
  }
}