Pith Number

pith:CRDMK6ND

pith:2018:CRDMK6NDZHD6345BIBWCQUEV2Y

not attested not anchored not stored refs pending

M-ary Orthogonal Chirp Modulation for Coherent and Non-coherent Underwater Acoustic Communications

Dimitris A. Pados, Song-Wen Huang

arxiv:1803.02950 v1 · 2018-03-08 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CRDMK6NDZHD6345BIBWCQUEV2Y}

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	2026-05-18T00:21:44.890240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1446c579a3c9c7edf3a1406c285095d61d607a79bfd5af100172ed93ce0b4e69

Aliases

arxiv: 1803.02950 · arxiv_version: 1803.02950v1 · doi: 10.48550/arxiv.1803.02950 · pith_short_12: CRDMK6NDZHD6 · pith_short_16: CRDMK6NDZHD6345B · pith_short_8: CRDMK6ND

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/CRDMK6NDZHD6345BIBWCQUEV2Y \
  | 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: 1446c579a3c9c7edf3a1406c285095d61d607a79bfd5af100172ed93ce0b4e69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b768c0dac7b2c0e21218ca1f5df7b2d85ad4cb9563779648530ffc1ad1b66f0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-03-08T03:11:47Z",
    "title_canon_sha256": "c35accf8449aa717ff1a8f5e8dbe7b259a3353f095a1cbfd586d500bf76ba6e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02950",
    "kind": "arxiv",
    "version": 1
  }
}