Pith Number

pith:XVYI47LS

pith:2016:XVYI47LSHGFXOQLHAZPH53EYXP

not attested not anchored not stored refs pending

Orthogonal Basis Spreading Sequence for Optimal CDMA

Hirofumi Tsuda, Ken Umeno

arxiv:1605.04721 v7 · 2016-05-16 · 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{XVYI47LSHGFXOQLHAZPH53EYXP}

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	2026-05-18T00:55:39.165792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd708e7d72398b774167065e7eec98bbfd7487f0b12cae7a0d176c7996647f2b

Aliases

arxiv: 1605.04721 · arxiv_version: 1605.04721v7 · doi: 10.48550/arxiv.1605.04721 · pith_short_12: XVYI47LSHGFX · pith_short_16: XVYI47LSHGFXOQLH · pith_short_8: XVYI47LS

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/XVYI47LSHGFXOQLHAZPH53EYXP \
  | 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: bd708e7d72398b774167065e7eec98bbfd7487f0b12cae7a0d176c7996647f2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41e204fa6429d2f5ca3f74f82d77993ca0a34b5fa9227c6af1b5445371e59bbd",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-05-16T10:35:12Z",
    "title_canon_sha256": "2169f3fd1ecb5377dd758276e403b868e70fa0d9876f6228c2534f684135369e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04721",
    "kind": "arxiv",
    "version": 7
  }
}