Pith Number

pith:JTBCROF5

pith:2009:JTBCROF54X7DAXMI3OJ67R7TYW

not attested not anchored not stored refs pending

Unsupervised and Non Parametric Iterative Soft Bit Error Rate Estimation for Any Communications System

Samir Saoudi, Tarik Ait-Idir, Yukou Mochida

arxiv:0907.4697 v3 · 2009-07-27 · 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{JTBCROF54X7DAXMI3OJ67R7TYW}

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	2026-05-18T03:12:23.002660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cc228b8bde5fe305d88db93efc7f3c5ba9c82110b4cd44ca6a4a6b2613b1d3e

Aliases

arxiv: 0907.4697 · arxiv_version: 0907.4697v3 · doi: 10.48550/arxiv.0907.4697 · pith_short_12: JTBCROF54X7D · pith_short_16: JTBCROF54X7DAXMI · pith_short_8: JTBCROF5

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/JTBCROF54X7DAXMI3OJ67R7TYW \
  | 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: 4cc228b8bde5fe305d88db93efc7f3c5ba9c82110b4cd44ca6a4a6b2613b1d3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8493b01e977d04bc1f677c2be71e72fef380110fc05dbaafcdc8b7631756fc6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-07-27T16:56:12Z",
    "title_canon_sha256": "cbcbefec27c047a91b5d05fc8443aecc05d1ee9868020957f00fe0bbb96c65d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4697",
    "kind": "arxiv",
    "version": 3
  }
}