Pith Number

pith:I2FNE4FT

pith:2017:I2FNE4FTU4AP6EO6S2EVC5LY4K

not attested not anchored not stored refs pending

Robust Sparse Estimation Tasks in High Dimensions

Jerry Li

arxiv:1702.05860 v2 · 2017-02-20 · cs.LG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2FNE4FTU4AP6EO6S2EVC5LY4K}

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	2026-05-18T00:49:46.403274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468ad270b3a700ff11de9689517578e2835ac532dbbd8eec139a9ac0649ccd7b

Aliases

arxiv: 1702.05860 · arxiv_version: 1702.05860v2 · doi: 10.48550/arxiv.1702.05860 · pith_short_12: I2FNE4FTU4AP · pith_short_16: I2FNE4FTU4AP6EO6 · pith_short_8: I2FNE4FT

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/I2FNE4FTU4AP6EO6S2EVC5LY4K \
  | 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: 468ad270b3a700ff11de9689517578e2835ac532dbbd8eec139a9ac0649ccd7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f66653819fc499a8d550c4b824b7b05c5375829406a7dc5a79d7e4ea68cbfb70",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-02-20T05:22:55Z",
    "title_canon_sha256": "ed7fd2bc416c509a57400c7b44562976d8b2847686c88689463a213ceadbad7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05860",
    "kind": "arxiv",
    "version": 2
  }
}