Pith Number

pith:UPNKWAQW

pith:2019:UPNKWAQWZURXKJRFDS6QLMA2AL

not attested not anchored not stored refs pending

Minimal subshifts with a language pivot property

Ville Salo

arxiv:1901.04688 v1 · 2019-01-15 · math.DS · 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{UPNKWAQWZURXKJRFDS6QLMA2AL}

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	2026-05-17T23:56:22.051664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3daab0216cd237526251cbd05b01a02d3bdb26845e89bfe4bdfac7474a7689f

Aliases

arxiv: 1901.04688 · arxiv_version: 1901.04688v1 · doi: 10.48550/arxiv.1901.04688 · pith_short_12: UPNKWAQWZURX · pith_short_16: UPNKWAQWZURXKJRF · pith_short_8: UPNKWAQW

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/UPNKWAQWZURXKJRFDS6QLMA2AL \
  | 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: a3daab0216cd237526251cbd05b01a02d3bdb26845e89bfe4bdfac7474a7689f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "585c2598f272523f2c257e4ad7528b7995da0e3cc63347823629c58eb4395bc4",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-01-15T07:29:07Z",
    "title_canon_sha256": "6c0a96d8f68bd317238b2423d7c6a7c36a3fe40a984c0f44538f0dfb36002600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04688",
    "kind": "arxiv",
    "version": 1
  }
}