Pith Number

pith:7MFMS2T6

pith:1997:7MFMS2T6JSFWWJJXLKYNFIBGU5

not attested not anchored not stored refs pending

Partial dynamical systems and C*-algebras generated by partial isometries

John Quigg, Marcelo Laca, Ruy Exel

arxiv:funct-an/9712007 v1 · 1997-12-18 · funct-an · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7MFMS2T6JSFWWJJXLKYNFIBGU5}

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	2026-05-18T01:06:48.234565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb0ac96a7e4c8b6b25375ab0d2a026a7684344f8882d01ca0788e5f599794c03

Aliases

arxiv: funct-an/9712007 · arxiv_version: funct-an/9712007v1 · doi: 10.48550/arxiv.funct-an/9712007 · pith_short_12: 7MFMS2T6JSFW · pith_short_16: 7MFMS2T6JSFWWJJX · pith_short_8: 7MFMS2T6

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/7MFMS2T6JSFWWJJXLKYNFIBGU5 \
  | 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: fb0ac96a7e4c8b6b25375ab0d2a026a7684344f8882d01ca0788e5f599794c03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee005e2bf576759a622d282e1c2ae0276636ac28942fba3d52b17420c566f41f",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "",
    "primary_cat": "funct-an",
    "submitted_at": "1997-12-18T20:04:10Z",
    "title_canon_sha256": "75ed11f13863a084c98aae54fb1b8343bf30f8f43e34ceaca6f583b85b1e1900"
  },
  "schema_version": "1.0",
  "source": {
    "id": "funct-an/9712007",
    "kind": "arxiv",
    "version": 1
  }
}