Pith Number

pith:5XBXQ4BK

pith:2013:5XBXQ4BKY2UPML7EVDKJ6MGAQB

not attested not anchored not stored refs pending

Spectral Compressive Sensing with Polar Interpolation

Hamid Dadkhahi, Karsten Fyhn, Marco F. Duarte

arxiv:1303.2799 v3 · 2013-03-12 · 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{5XBXQ4BKY2UPML7EVDKJ6MGAQB}

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	2026-05-18T03:25:15.777849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edc378702ac6a8f62fe4a8d49f30c080448b53a59244b5859b86f652d8e2a093

Aliases

arxiv: 1303.2799 · arxiv_version: 1303.2799v3 · doi: 10.48550/arxiv.1303.2799 · pith_short_12: 5XBXQ4BKY2UP · pith_short_16: 5XBXQ4BKY2UPML7E · pith_short_8: 5XBXQ4BK

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/5XBXQ4BKY2UPML7EVDKJ6MGAQB \
  | 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: edc378702ac6a8f62fe4a8d49f30c080448b53a59244b5859b86f652d8e2a093

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3873a56e3d5e663fbe466471879195170d6d1207b125da41943c09843de7667",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-03-12T08:12:54Z",
    "title_canon_sha256": "c1a73823473e96de0c082540e00fe79acd25f68f193234308df91178fe4f2459"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2799",
    "kind": "arxiv",
    "version": 3
  }
}