Pith Number

pith:DRYP4ZIN

pith:2016:DRYP4ZINCDSN76EGPUIR43KB3J

not attested not anchored not stored refs pending

Characteristic and hyperinvariant subspaces over the field GF(2)

Harald K. Wimmer, Pudji Astuti

arxiv:1603.06228 v1 · 2016-03-20 · math.RA · math.FA · 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{DRYP4ZINCDSN76EGPUIR43KB3J}

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	2026-05-18T01:18:49.951411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c70fe650d10e4dff8867d111e6d41da53d74aeb83e7ef6f4ed114968abbcdf3

Aliases

arxiv: 1603.06228 · arxiv_version: 1603.06228v1 · doi: 10.48550/arxiv.1603.06228 · pith_short_12: DRYP4ZINCDSN · pith_short_16: DRYP4ZINCDSN76EG · pith_short_8: DRYP4ZIN

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/DRYP4ZINCDSN76EGPUIR43KB3J \
  | 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: 1c70fe650d10e4dff8867d111e6d41da53d74aeb83e7ef6f4ed114968abbcdf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11831af8dbe8d5da9af9044e702884e09d8d215d1f055a4a506c5f6ce6606589",
    "cross_cats_sorted": [
      "math.FA",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2016-03-20T15:34:36Z",
    "title_canon_sha256": "c1437bb6ca1e71851309630554cacb335f7d35913b9614f8c28aa33db83c84a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06228",
    "kind": "arxiv",
    "version": 1
  }
}