Pith Number

pith:WLR32HGN

pith:2017:WLR32HGNEHJXPFXE2ODL5YFZQD

not attested not anchored not stored refs pending

Symmetric rank-one updates from partial spectrum with an application to out-of-sample extension

Nir Sharon, Roy Mitz, Yoel Shkolnisky

arxiv:1710.02774 v4 · 2017-10-08 · math.NA · cs.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{WLR32HGNEHJXPFXE2ODL5YFZQD}

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	2026-05-17T23:41:18.307992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2e3bd1ccd21d37796e4d386bee0b980d9ed24b5741ff4eb1cc1c680893d8abd

Aliases

arxiv: 1710.02774 · arxiv_version: 1710.02774v4 · doi: 10.48550/arxiv.1710.02774 · pith_short_12: WLR32HGNEHJX · pith_short_16: WLR32HGNEHJXPFXE · pith_short_8: WLR32HGN

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/WLR32HGNEHJXPFXE2ODL5YFZQD \
  | 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: b2e3bd1ccd21d37796e4d386bee0b980d9ed24b5741ff4eb1cc1c680893d8abd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f1d1a3a8d0d9eed31ec73a1ef984a4fc9db14bb3bb0709a9848fb3962690950",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-08T03:20:47Z",
    "title_canon_sha256": "869132969f1a4b8055e4ef03d43932a81c43196e54693987a66bc3649f6e8033"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02774",
    "kind": "arxiv",
    "version": 4
  }
}