Pith Number

pith:J623LKHM

pith:2015:J623LKHM3QM6GG3K46GSEGBE7C

not attested not anchored not stored refs pending

On one-parameter Koopman groups

A.F.M. ter Elst, M. Lemanczyk

arxiv:1504.06008 v1 · 2015-04-22 · math.DS · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J623LKHM3QM6GG3K46GSEGBE7C}

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	2026-05-18T01:23:24.261801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fb5b5a8ecdc19e31b6ae78d221824f89acab1fa790f0a5b82ee5b423082468c

Aliases

arxiv: 1504.06008 · arxiv_version: 1504.06008v1 · doi: 10.48550/arxiv.1504.06008 · pith_short_12: J623LKHM3QM6 · pith_short_16: J623LKHM3QM6GG3K · pith_short_8: J623LKHM

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/J623LKHM3QM6GG3K46GSEGBE7C \
  | 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: 4fb5b5a8ecdc19e31b6ae78d221824f89acab1fa790f0a5b82ee5b423082468c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28c182d09a0daa22aca98a4a452b916bcb74b26cf87669b6aedf44adac5176df",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-04-22T23:34:46Z",
    "title_canon_sha256": "860fddf9f7ff20e33158d0c86078b3721e89041aae9e1f604ced854239727727"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06008",
    "kind": "arxiv",
    "version": 1
  }
}