Pith Number

pith:SA4L2AM7

pith:2012:SA4L2AM7DCR2X6HMSVKA4OI4SK

not attested not anchored not stored refs pending

A Two-Dimensional Signal Space for Intensity-Modulated Channels

Erik Agrell, Frank R. Kschischang (Fellow, Gerhard Kramer (Fellow, IEEE), Johnny Karout (Student Member

arxiv:1203.1528 v1 · 2012-03-07 · 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{SA4L2AM7DCR2X6HMSVKA4OI4SK}

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	2026-05-18T02:30:01.463184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9038bd019f18a3abf8ec95540e391c92a59471e17383c01defee7533806e9056

Aliases

arxiv: 1203.1528 · arxiv_version: 1203.1528v1 · doi: 10.48550/arxiv.1203.1528 · pith_short_12: SA4L2AM7DCR2 · pith_short_16: SA4L2AM7DCR2X6HM · pith_short_8: SA4L2AM7

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/SA4L2AM7DCR2X6HMSVKA4OI4SK \
  | 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: 9038bd019f18a3abf8ec95540e391c92a59471e17383c01defee7533806e9056

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8e3540fb12e3bde0f010f508c4e8bd2cfda1f07f234ca06a93a816a48aad78c",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-03-07T16:35:41Z",
    "title_canon_sha256": "ff650fa69ea2a7a4732d48288519d1a0fde994ed48e7180f148415a5da8d8997"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1528",
    "kind": "arxiv",
    "version": 1
  }
}