Pith Number

pith:STRWFVBV

pith:2025:STRWFVBVA2HT5PPHG3HRN7LT5D

not attested not anchored not stored refs pending

Sparse Signal Recovery From Quadratic Systems with Full-Rank Matrices

Jinming Wen, Meng Huang, Yi Hu

arxiv:2507.07557 v1 · 2025-07-10 · 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{STRWFVBVA2HT5PPHG3HRN7LT5D}

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	2026-07-05T11:35:00.642871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94e362d435068f3ebde736cf16fd73e8c918c309a3c7e91214f5ffadfd3c8b26

Aliases

arxiv: 2507.07557 · arxiv_version: 2507.07557v1 · doi: 10.48550/arxiv.2507.07557 · pith_short_12: STRWFVBVA2HT · pith_short_16: STRWFVBVA2HT5PPH · pith_short_8: STRWFVBV

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/STRWFVBVA2HT5PPHG3HRN7LT5D \
  | 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: 94e362d435068f3ebde736cf16fd73e8c918c309a3c7e91214f5ffadfd3c8b26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "592b8bfcdf10f1bf3078069d6e7165c5ddbcff69e98e3b45f4efbaf9e598d068",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2025-07-10T08:56:11Z",
    "title_canon_sha256": "1fe77f564e01bee13b47cfb352fbebe3a5e8ef9332a8a171fb6eccca52f7cc73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.07557",
    "kind": "arxiv",
    "version": 1
  }
}