Pith Number

pith:HWVMXFDS

pith:2012:HWVMXFDSTFYA6IJP4MQMQBOJNW

not attested not anchored not stored refs pending

Enumerating Invariant Subspaces of ${\mathbb R}^n$

Josh Ide, Lenny Jones

arxiv:1201.2958 v1 · 2012-01-13 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWVMXFDSTFYA6IJP4MQMQBOJNW}

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	2026-05-18T04:04:32.673084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3daacb947299700f212fe320c805c96db59eeb96eea8cc278b8e9b4733dbbe9e

Aliases

arxiv: 1201.2958 · arxiv_version: 1201.2958v1 · doi: 10.48550/arxiv.1201.2958 · pith_short_12: HWVMXFDSTFYA · pith_short_16: HWVMXFDSTFYA6IJP · pith_short_8: HWVMXFDS

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/HWVMXFDSTFYA6IJP4MQMQBOJNW \
  | 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: 3daacb947299700f212fe320c805c96db59eeb96eea8cc278b8e9b4733dbbe9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55758810b7468f0349700466ba2208a8be541446111b77c67817323e0147256c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2012-01-13T21:33:16Z",
    "title_canon_sha256": "ba2949bfc7ed738684af30de6973bbf06427ab37b1d5810fb5ae3fd48205015f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2958",
    "kind": "arxiv",
    "version": 1
  }
}