Pith Number

pith:IZB3CKC5

pith:2010:IZB3CKC5U3XFZZZWA6M5ANX2QD

not attested not anchored not stored refs pending

Compressed Sensing for Sparse Underwater Channel Estimation: Some Practical Considerations

Sushil Subramanian

arxiv:1002.2677 v1 · 2010-02-13 · stat.AP · 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{IZB3CKC5U3XFZZZWA6M5ANX2QD}

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	2026-07-04T17:21:46.454547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4643b1285da6ee5ce7360799d036fa80fac8ea844d1a13270ffbc392b38cd2ac

Aliases

arxiv: 1002.2677 · arxiv_version: 1002.2677v1 · doi: 10.48550/arxiv.1002.2677 · pith_short_12: IZB3CKC5U3XF · pith_short_16: IZB3CKC5U3XFZZZW · pith_short_8: IZB3CKC5

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/IZB3CKC5U3XFZZZWA6M5ANX2QD \
  | 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: 4643b1285da6ee5ce7360799d036fa80fac8ea844d1a13270ffbc392b38cd2ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bec92269bff22167c4ae595ac63c23512be9b938710749b7164833d2c4ca8e3",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2010-02-13T03:00:40Z",
    "title_canon_sha256": "32fac5012553bac775593758611ea0a9cd3625d095e4fb807b1c299df379f640"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2677",
    "kind": "arxiv",
    "version": 1
  }
}