Pith Number

pith:CYDPHU2O

pith:2015:CYDPHU2OJ554VKLYSW46Z4W26M

not attested not anchored not stored refs pending

Upper Bounds on the Error of Sparse Vector and Low-Rank Matrix Recovery

Cristian R. Rojas, Magnus Jansson, Massoud Babaie-Zadeh, Mohammadreza Malek-Mohammadi

arxiv:1504.03195 v2 · 2015-04-13 · 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{CYDPHU2OJ554VKLYSW46Z4W26M}

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	2026-05-18T01:37:48.881770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1606f3d34e4f7bcaa97895b9ecf2daf32d09d6779561e143cfc55cd8467a6126

Aliases

arxiv: 1504.03195 · arxiv_version: 1504.03195v2 · doi: 10.48550/arxiv.1504.03195 · pith_short_12: CYDPHU2OJ554 · pith_short_16: CYDPHU2OJ554VKLY · pith_short_8: CYDPHU2O

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/CYDPHU2OJ554VKLYSW46Z4W26M \
  | 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: 1606f3d34e4f7bcaa97895b9ecf2daf32d09d6779561e143cfc55cd8467a6126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a6eb06dfdf012ef101131bf2b2b7cfda6fdf49074ed20fd49c91be1623e0e7",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-13T14:16:07Z",
    "title_canon_sha256": "160ee24da1811d19ca6f9f8ea033ae96bda5756a548398acfd4e63d5cc147620"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03195",
    "kind": "arxiv",
    "version": 2
  }
}