Pith Number

pith:RY55MYGJ

pith:2013:RY55MYGJDIHGF4QRV7JYY3BPZ2

not attested not anchored not stored refs pending

Repetition-free longest common subsequence of random sequences

Cristina G. Fernandes, Marcos Kiwi

arxiv:1305.4883 v1 · 2013-05-21 · math.CO · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RY55MYGJDIHGF4QRV7JYY3BPZ2}

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	2026-05-18T03:25:15.051592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3bd660c91a0e62f211afd38c6c2fcea38dcd5d3532200f4e95a4dc8d9e37d0

Aliases

arxiv: 1305.4883 · arxiv_version: 1305.4883v1 · doi: 10.48550/arxiv.1305.4883 · pith_short_12: RY55MYGJDIHG · pith_short_16: RY55MYGJDIHGF4QR · pith_short_8: RY55MYGJ

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/RY55MYGJDIHGF4QRV7JYY3BPZ2 \
  | 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: 8e3bd660c91a0e62f211afd38c6c2fcea38dcd5d3532200f4e95a4dc8d9e37d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afa9427e848c7effe885476e0503802068fa87107c93c0d3f4051eac89413d98",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-05-21T17:04:21Z",
    "title_canon_sha256": "c1ffb76c2f170ccb87e0ae14b0067af882d8df2417251601023494d7185f1e7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4883",
    "kind": "arxiv",
    "version": 1
  }
}