Pith Number

pith:WFY3VVRT

pith:2012:WFY3VVRTW7OPMYENS45XVNRQFL

not attested not anchored not stored refs pending

On Shift Spaces with Algebraic Structure

Ilkka T\"orm\"a, Ville Salo

arxiv:1203.6795 v1 · 2012-03-30 · math.DS · cs.DM · cs.FL · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFY3VVRTW7OPMYENS45XVNRQFL}

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	2026-05-18T03:57:13.883194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b171bad633b7dcf6608d973b7ab6302afb2adcb7c778a109d00422dcb250b9ab

Aliases

arxiv: 1203.6795 · arxiv_version: 1203.6795v1 · doi: 10.48550/arxiv.1203.6795 · pith_short_12: WFY3VVRTW7OP · pith_short_16: WFY3VVRTW7OPMYEN · pith_short_8: WFY3VVRT

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/WFY3VVRTW7OPMYENS45XVNRQFL \
  | 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: b171bad633b7dcf6608d973b7ab6302afb2adcb7c778a109d00422dcb250b9ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80a789ba8e80cd474ec68884ed4f48c1892366f31e30c94a02746751fd712f72",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.FL",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-03-30T12:52:55Z",
    "title_canon_sha256": "b3212f99a852a9d66fb499e44522e207161e187fcb92f19d3f395673ff0ec9ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6795",
    "kind": "arxiv",
    "version": 1
  }
}