Pith Number

pith:RPYQTCFV

pith:2018:RPYQTCFV6KYB3G7AAG4O7E5RRT

not attested not anchored not stored refs pending

A $Z^k$-invariant subspace without the wandering property

Daniel Seco

arxiv:1807.04679 v2 · 2018-07-12 · math.CV · math.CA · 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{RPYQTCFV6KYB3G7AAG4O7E5RRT}

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	2026-05-18T00:09:58.206531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bf10988b5f2b01d9be001b8ef93b18cde80cc77c6690bcacab12064a58a9fb0

Aliases

arxiv: 1807.04679 · arxiv_version: 1807.04679v2 · doi: 10.48550/arxiv.1807.04679 · pith_short_12: RPYQTCFV6KYB · pith_short_16: RPYQTCFV6KYB3G7A · pith_short_8: RPYQTCFV

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/RPYQTCFV6KYB3G7AAG4O7E5RRT \
  | 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: 8bf10988b5f2b01d9be001b8ef93b18cde80cc77c6690bcacab12064a58a9fb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78550e0a692d5407c086caba697aea38512070cd276729cd67bfd8a9215fa1e7",
    "cross_cats_sorted": [
      "math.CA",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-07-12T15:37:15Z",
    "title_canon_sha256": "36df44cfdb8a8fe1c1ce91fb0b52db74b46cf427fe08436ea3bfd5005c79ed93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04679",
    "kind": "arxiv",
    "version": 2
  }
}