Pith Number

pith:Q7L3RYON

pith:2005:Q7L3RYONTLL4DY6TXFO44IN4PF

not attested not anchored not stored refs pending

Existence of finite test-sets for k-power-freeness of uniform morphisms

Francis Wlazinski (LaRIA), Gw\'ena\"el Richomme (LaRIA)

arxiv:cs/0512051 v1 · 2005-12-13 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7L3RYONTLL4DY6TXFO44IN4PF}

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	2026-05-18T01:08:54.919705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87d7b8e1cd9ad7c1e3d3b95dce21bc7959c4c5c24a74fb1b3c53a59a39a1b951

Aliases

arxiv: cs/0512051 · arxiv_version: cs/0512051v1 · doi: 10.48550/arxiv.cs/0512051 · pith_short_12: Q7L3RYONTLL4 · pith_short_16: Q7L3RYONTLL4DY6T · pith_short_8: Q7L3RYON

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/Q7L3RYONTLL4DY6TXFO44IN4PF \
  | 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: 87d7b8e1cd9ad7c1e3d3b95dce21bc7959c4c5c24a74fb1b3c53a59a39a1b951

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d9280e980f4ca06b739ca59e30dd98c6c09b5e93bb69ecf1e9ec4fb0f54fe7d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DM",
    "submitted_at": "2005-12-13T13:51:13Z",
    "title_canon_sha256": "05272be21ae5a6aa571a6253e77a1a6f4d01e2e49e50b82a99089a4dd2786e89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0512051",
    "kind": "arxiv",
    "version": 1
  }
}