Pith Number

pith:QIG4KK34

pith:2015:QIG4KK34ISGEK7ZCEKOLAKCXEU

not attested not anchored not stored refs pending

Discrete-Time Ping-pong Optimized Pulse Shaping-OFDM (POPS-OFDM) Operating on Time and Frequency Dispersive Channels for 5G Systems

Fatma Adelkefi, Mohamed Siala, Zeineb Hraiech

arxiv:1512.04107 v1 · 2015-12-13 · 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{QIG4KK34ISGEK7ZCEKOLAKCXEU}

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	2026-05-18T01:24:23.123090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

820dc52b7c448c457f22229cb028572531d16ecb837421616a357c34f797c69c

Aliases

arxiv: 1512.04107 · arxiv_version: 1512.04107v1 · doi: 10.48550/arxiv.1512.04107 · pith_short_12: QIG4KK34ISGE · pith_short_16: QIG4KK34ISGEK7ZC · pith_short_8: QIG4KK34

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/QIG4KK34ISGEK7ZCEKOLAKCXEU \
  | 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: 820dc52b7c448c457f22229cb028572531d16ecb837421616a357c34f797c69c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8642e776c703201aba41426f634805ecb3e369bd5836fb4caec7bde40a4381d6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-12-13T19:23:17Z",
    "title_canon_sha256": "985fead46df8d53f5a48899ff624c6086743def42f8d8931c029472133b3d505"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04107",
    "kind": "arxiv",
    "version": 1
  }
}