Pith Number

pith:RXK7NPMQ

pith:2008:RXK7NPMQYZ3F6VSDUJXMVOW4QY

not attested not anchored not stored refs pending

Applications of Automata and Graphs: Labeling Operators in Hilbert Space II

Ilwoo Cho, Palle E. T. Jorgensen

arxiv:0809.4625 v1 · 2008-09-26 · math.OA · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RXK7NPMQYZ3F6VSDUJXMVOW4QY}

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	2026-05-18T02:15:33.455484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8dd5f6bd90c6765f5643a26ecabadc863628d89365ebe7b9ec31b34496464616

Aliases

arxiv: 0809.4625 · arxiv_version: 0809.4625v1 · doi: 10.48550/arxiv.0809.4625 · pith_short_12: RXK7NPMQYZ3F · pith_short_16: RXK7NPMQYZ3F6VSD · pith_short_8: RXK7NPMQ

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/RXK7NPMQYZ3F6VSDUJXMVOW4QY \
  | 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: 8dd5f6bd90c6765f5643a26ecabadc863628d89365ebe7b9ec31b34496464616

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e92e015e5d7acf24bfafd6b1aa6240316665ab0a06ef78be85c9106c6f593a9",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2008-09-26T13:28:04Z",
    "title_canon_sha256": "f3955006748cd66629f16863878670284c93e6ac49404faccd8c5ac82d42541c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4625",
    "kind": "arxiv",
    "version": 1
  }
}