Pith Number

pith:KKOBK6JE

pith:2009:KKOBK6JE7P4JIU7JZUISSPW5PM

not attested not anchored not stored refs pending

Step-Frequency Radar with Compressive Sampling (SFR-CS)

Athina Petropulu, Sagar Shah, Yao Yu

arxiv:0910.0886 v2 · 2009-10-05 · 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{KKOBK6JE7P4JIU7JZUISSPW5PM}

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	2026-05-18T02:24:46.941560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

529c157924fbf89453e9cd11293edd7b3a5d4bd810b25c90d3290334c212d76d

Aliases

arxiv: 0910.0886 · arxiv_version: 0910.0886v2 · doi: 10.48550/arxiv.0910.0886 · pith_short_12: KKOBK6JE7P4J · pith_short_16: KKOBK6JE7P4JIU7J · pith_short_8: KKOBK6JE

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/KKOBK6JE7P4JIU7JZUISSPW5PM \
  | 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: 529c157924fbf89453e9cd11293edd7b3a5d4bd810b25c90d3290334c212d76d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fa44cbcdd10d3cc22cc18c52c2e476fb43bca8953e040717c3c3a595256b1de",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-10-05T22:40:15Z",
    "title_canon_sha256": "083ec272ea2b1592bce1b73a66eb0758bbb03a095e9731308fddfdfc14fb946a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0886",
    "kind": "arxiv",
    "version": 2
  }
}