Pith Number

pith:ZKD4VG2F

pith:2018:ZKD4VG2FIECE4EGIYJVLU4GHK6

not attested not anchored not stored refs pending

Low-cost Cognitive Radios against Spectrum Scarcity

Alexandros-Apostolos A. Boulogeorgos, George K. Karagiannidis

arxiv:1803.10536 v1 · 2018-03-28 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZKD4VG2FIECE4EGIYJVLU4GHK6}

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	2026-05-18T00:19:54.986608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca87ca9b4541044e10c8c26aba70c757b2447be505e36b5794dcf3051ef64c72

Aliases

arxiv: 1803.10536 · arxiv_version: 1803.10536v1 · doi: 10.48550/arxiv.1803.10536 · pith_short_12: ZKD4VG2FIECE · pith_short_16: ZKD4VG2FIECE4EGI · pith_short_8: ZKD4VG2F

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/ZKD4VG2FIECE4EGIYJVLU4GHK6 \
  | 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: ca87ca9b4541044e10c8c26aba70c757b2447be505e36b5794dcf3051ef64c72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "374c2a985ac2b8571481e7f63dda1408425148def6e682a9235e528f40945d1a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2018-03-28T11:37:02Z",
    "title_canon_sha256": "247767d6f975bd08481202c40999de4d74373059e49165fef0794aaf4c55de8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10536",
    "kind": "arxiv",
    "version": 1
  }
}