Pith Number

pith:FUWRTVLK

pith:2016:FUWRTVLKEXPGM7EZPKU6FOJ6XT

not attested not anchored not stored refs pending

Weyl Spreading Sequence Optimizing CDMA

Hirofumi Tsuda, Ken Umeno

arxiv:1602.04584 v7 · 2016-02-15 · cs.IT · math.IT · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FUWRTVLKEXPGM7EZPKU6FOJ6XT}

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	2026-05-17T23:56:05.697372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d2d19d56a25de667c997aa9e2b93ebcda1c738a868f9051484889210375d782

Aliases

arxiv: 1602.04584 · arxiv_version: 1602.04584v7 · doi: 10.48550/arxiv.1602.04584 · pith_short_12: FUWRTVLKEXPG · pith_short_16: FUWRTVLKEXPGM7EZ · pith_short_8: FUWRTVLK

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/FUWRTVLKEXPGM7EZPKU6FOJ6XT \
  | 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: 2d2d19d56a25de667c997aa9e2b93ebcda1c738a868f9051484889210375d782

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e96306f34c4d0248a4a9074e3ee8d182d9c3d4a761a1a9dea7867648c75ef24",
    "cross_cats_sorted": [
      "math.IT",
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-02-15T07:45:35Z",
    "title_canon_sha256": "02f1f6fb66b4037eaedb6dd5eca86437ae28ba7c06d83a73d5932b0a823fba62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04584",
    "kind": "arxiv",
    "version": 7
  }
}