Pith Number

pith:DLS2APSH

pith:2018:DLS2APSH4TA2UHZY4EBYT3HPIZ

not attested not anchored not stored refs pending

Sparse recovery based on q-ratio constrained minimal singular values

Jun Yu, Zhiyong Zhou

arxiv:1801.06358 v1 · 2018-01-19 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DLS2APSH4TA2UHZY4EBYT3HPIZ}

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	2026-05-18T00:25:30.402542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ae5a03e47e4c1aa1f38e10389ecef46498336d1364a362fdb2f92513dd53511

Aliases

arxiv: 1801.06358 · arxiv_version: 1801.06358v1 · doi: 10.48550/arxiv.1801.06358 · pith_short_12: DLS2APSH4TA2 · pith_short_16: DLS2APSH4TA2UHZY · pith_short_8: DLS2APSH

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/DLS2APSH4TA2UHZY4EBYT3HPIZ \
  | 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: 1ae5a03e47e4c1aa1f38e10389ecef46498336d1364a362fdb2f92513dd53511

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "669787d51073c2d955765d9946ad2f1995989045f1ad5c9a431616c491de081a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-19T10:30:15Z",
    "title_canon_sha256": "ab0850d921524e2ba2d1f5928fa74be1b23eef3cd738b0826b030a0c18018251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06358",
    "kind": "arxiv",
    "version": 1
  }
}