Pith Number

pith:D5DBFCC4

pith:2015:D5DBFCC4XDB2A5KR6XCI6PJTYD

not attested not anchored not stored refs pending

Newtonized Orthogonal Matching Pursuit: Frequency Estimation over the Continuum

Babak Mamandipoor, Dinesh Ramasamy, Upamanyu Madhow

arxiv:1509.01942 v2 · 2015-09-07 · 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{D5DBFCC4XDB2A5KR6XCI6PJTYD}

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	2026-05-18T01:08:13.040417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f4612885cb8c3a07551f5c48f3d33c0deb2293f918545df15efa1febbfc6690

Aliases

arxiv: 1509.01942 · arxiv_version: 1509.01942v2 · doi: 10.48550/arxiv.1509.01942 · pith_short_12: D5DBFCC4XDB2 · pith_short_16: D5DBFCC4XDB2A5KR · pith_short_8: D5DBFCC4

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/D5DBFCC4XDB2A5KR6XCI6PJTYD \
  | 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: 1f4612885cb8c3a07551f5c48f3d33c0deb2293f918545df15efa1febbfc6690

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0e951030a3b875947677512ae1db21c3c4b79907e4c93ed541cddf057269d04",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-09-07T08:16:21Z",
    "title_canon_sha256": "45b371e6b730b3989f50d110fb37b0d6da4e1b4094bd16eb9d8fc83e46413fd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01942",
    "kind": "arxiv",
    "version": 2
  }
}