Pith Number

pith:RXYXFEVF

pith:2018:RXYXFEVF67A6XAFTAYOTYUH7MT

not attested not anchored not stored refs pending

Exploiting Numerical Sparsity for Efficient Learning : Faster Eigenvector Computation and Regression

Aaron Sidford, Neha Gupta

arxiv:1811.10866 v1 · 2018-11-27 · cs.DS · cs.LG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RXYXFEVF67A6XAFTAYOTYUH7MT}

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	2026-05-17T23:59:47.289794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8df17292a5f7c1eb80b3061d3c50ff64fa347cb627540b2eca378ce501686723

Aliases

arxiv: 1811.10866 · arxiv_version: 1811.10866v1 · doi: 10.48550/arxiv.1811.10866 · pith_short_12: RXYXFEVF67A6 · pith_short_16: RXYXFEVF67A6XAFT · pith_short_8: RXYXFEVF

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/RXYXFEVF67A6XAFTAYOTYUH7MT \
  | 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: 8df17292a5f7c1eb80b3061d3c50ff64fa347cb627540b2eca378ce501686723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7d0784a1827b024f635cb2265a009d8f68042c562632ed7aba2126fc1cfbfa7",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-11-27T08:22:54Z",
    "title_canon_sha256": "aadddc9c520dafcaff407fe4d8da20c3d03d0263ae6f6f4a7b782aa71bdcca38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.10866",
    "kind": "arxiv",
    "version": 1
  }
}