Pith Number

pith:XHY2L3KF

pith:2018:XHY2L3KF2CM5HOPBFMTRI2BJFH

not attested not anchored not stored refs pending

The overlap gap between left-infinite and right-infinite words

C. Nogueira, J. C. Costa, M. L. Teixeira

arxiv:1804.10461 v1 · 2018-04-27 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHY2L3KF2CM5HOPBFMTRI2BJFH}

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	2026-05-18T00:17:20.680548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9f1a5ed45d099d3b9e12b2714682929ef9be4764c5bd4782753321d8dab93f3

Aliases

arxiv: 1804.10461 · arxiv_version: 1804.10461v1 · doi: 10.48550/arxiv.1804.10461 · pith_short_12: XHY2L3KF2CM5 · pith_short_16: XHY2L3KF2CM5HOPB · pith_short_8: XHY2L3KF

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/XHY2L3KF2CM5HOPBFMTRI2BJFH \
  | 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: b9f1a5ed45d099d3b9e12b2714682929ef9be4764c5bd4782753321d8dab93f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de2570bd4d3b06eb18648043436ee9a713f8dada876f41e6edf63d9fe995d498",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-04-27T12:11:47Z",
    "title_canon_sha256": "0eebc318016f8a258aacb4e2bf759b70d3793ef2a9a4126f9be95197df6f364e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10461",
    "kind": "arxiv",
    "version": 1
  }
}