Pith Number

pith:ZNNU4CKQ

pith:2014:ZNNU4CKQD2MDL3QQMRDXOSJHIP

not attested not anchored not stored refs pending

Complexity of Conjugacy, Factoring and Embedding for Countable Sofic Shifts of Rank 2

Ilkka T\"orm\"a, Ville Salo

arxiv:1408.6695 v1 · 2014-08-28 · math.DS · cs.CC · 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{ZNNU4CKQD2MDL3QQMRDXOSJHIP}

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	2026-05-18T02:44:01.024209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb5b4e09501e9835ee10644777492743eca76f3c68d1f9055e1a0289a081b4d6

Aliases

arxiv: 1408.6695 · arxiv_version: 1408.6695v1 · doi: 10.48550/arxiv.1408.6695 · pith_short_12: ZNNU4CKQD2MD · pith_short_16: ZNNU4CKQD2MDL3QQ · pith_short_8: ZNNU4CKQ

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/ZNNU4CKQD2MDL3QQMRDXOSJHIP \
  | 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: cb5b4e09501e9835ee10644777492743eca76f3c68d1f9055e1a0289a081b4d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40687bcf78daa3c4a37faacadb59761a091fd41797c0cab99c997982daf968a7",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-08-28T12:15:12Z",
    "title_canon_sha256": "5878f6dda202fcdd22d7090ef198d44e870ae539a6a2f5ac7abda4cd022f5429"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6695",
    "kind": "arxiv",
    "version": 1
  }
}