Pith Number

pith:4FSJKDDC

pith:2015:4FSJKDDCUYWX4SG5IXFBRKCKLR

not attested not anchored not stored refs pending

Frequency hopping sequences with optimal partial Hamming correlation

Jingjun Bao, Lijun Ji

arxiv:1511.02924 v2 · 2015-11-09 · cs.IT · cs.DM · 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{4FSJKDDCUYWX4SG5IXFBRKCKLR}

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	2026-05-18T01:27:14.769765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e164950c62a62d7e48dd45ca18a84a5c6bc9f1431e98d27b0221937a4826fb12

Aliases

arxiv: 1511.02924 · arxiv_version: 1511.02924v2 · doi: 10.48550/arxiv.1511.02924 · pith_short_12: 4FSJKDDCUYWX · pith_short_16: 4FSJKDDCUYWX4SG5 · pith_short_8: 4FSJKDDC

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/4FSJKDDCUYWX4SG5IXFBRKCKLR \
  | 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: e164950c62a62d7e48dd45ca18a84a5c6bc9f1431e98d27b0221937a4826fb12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89de5859a5ca608902715e3d077cce2e37d64eac49fdd7d1201f0de1c5ef3863",
    "cross_cats_sorted": [
      "cs.DM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-11-09T23:06:33Z",
    "title_canon_sha256": "d6714b8c6629bb2e8f4747d57bfeed843dcce58e1afa38fcf8c37c7efeacafd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.02924",
    "kind": "arxiv",
    "version": 2
  }
}