Pith Number

pith:C7JZ7K77

pith:2015:C7JZ7K77G3J6B5B363XD2MHWGP

not attested not anchored not stored refs pending

The Number of Distinct Subpalindromes in Random Words

Arseny M. Shur, Mikhail Rubinchik

arxiv:1505.08043 v1 · 2015-05-29 · math.CO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7JZ7K77G3J6B5B363XD2MHWGP}

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	2026-05-18T01:04:50.576995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17d39fabff36d3e0f43bf6ee3d30f633d25c7c1a7e8fcdc57a13d7bf03319c41

Aliases

arxiv: 1505.08043 · arxiv_version: 1505.08043v1 · doi: 10.48550/arxiv.1505.08043 · pith_short_12: C7JZ7K77G3J6 · pith_short_16: C7JZ7K77G3J6B5B3 · pith_short_8: C7JZ7K77

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/C7JZ7K77G3J6B5B363XD2MHWGP \
  | 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: 17d39fabff36d3e0f43bf6ee3d30f633d25c7c1a7e8fcdc57a13d7bf03319c41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23143b5fbdca5c4e7a92d8de75d53393e00d4eabb2a3c8c5a9350758ff169219",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-29T13:47:14Z",
    "title_canon_sha256": "4e1a0d63a7487df3796e859fddb56678d6c836f998e13db18f8ccfbb39f860f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.08043",
    "kind": "arxiv",
    "version": 1
  }
}