Pith Number

pith:EQ2OCSU5

pith:2017:EQ2OCSU5DKTKT5XFRGXWLVDKI3

not attested not anchored not stored refs pending

On the number of gapped repeats with arbitrary gap

Roman Kolpakov

arxiv:1701.01190 v1 · 2017-01-05 · 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{EQ2OCSU5DKTKT5XFRGXWLVDKI3}

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	2026-05-18T00:53:20.208023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2434e14a9d1aa6a9f6e589af65d46a46f418ed1158f2deae74dcf7ffce9fe07c

Aliases

arxiv: 1701.01190 · arxiv_version: 1701.01190v1 · doi: 10.48550/arxiv.1701.01190 · pith_short_12: EQ2OCSU5DKTK · pith_short_16: EQ2OCSU5DKTKT5XF · pith_short_8: EQ2OCSU5

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/EQ2OCSU5DKTKT5XFRGXWLVDKI3 \
  | 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: 2434e14a9d1aa6a9f6e589af65d46a46f418ed1158f2deae74dcf7ffce9fe07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85274b38dd510f58ed05d38ebcbe648d2772d7c65816dcdde9b48f1824cb7833",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-01-05T01:01:05Z",
    "title_canon_sha256": "34d9ec271972b4111592650b55bf7dcfdd2157384d2adb0d9b9054a9fa080b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01190",
    "kind": "arxiv",
    "version": 1
  }
}