Pith Number

pith:IWUNRU4Y

pith:2010:IWUNRU4YEQWFGES6FFWACWPHG7

not attested not anchored not stored refs pending

The MUSIC Algorithm for Sparse Objects: A Compressed Sensing Analysis

Albert C. Fannjiang

arxiv:1006.1678 v4 · 2010-06-09 · cs.IT · math.AP · math.IT · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IWUNRU4YEQWFGES6FFWACWPHG7}

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	2026-05-18T02:06:55.813579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45a8d8d398242c53125e296c0159e737e9a4a26b4ebdc8774125591a357159e9

Aliases

arxiv: 1006.1678 · arxiv_version: 1006.1678v4 · doi: 10.48550/arxiv.1006.1678 · pith_short_12: IWUNRU4YEQWF · pith_short_16: IWUNRU4YEQWFGES6 · pith_short_8: IWUNRU4Y

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/IWUNRU4YEQWFGES6FFWACWPHG7 \
  | 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: 45a8d8d398242c53125e296c0159e737e9a4a26b4ebdc8774125591a357159e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5888d4c33c2c53f7a8d5cf5c7923b9f1fe0e616ed0d68253ceb416b7a90a0325",
    "cross_cats_sorted": [
      "math.AP",
      "math.IT",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-06-09T00:35:31Z",
    "title_canon_sha256": "0a3da0849c7d324c177b4af6ac50a3f75c479d724409a8603f3dd5a5817767e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.1678",
    "kind": "arxiv",
    "version": 4
  }
}