Pith Number

pith:EOETQ76B

pith:2017:EOETQ76BEYRGWF5CKCV3QSSGUG

not attested not anchored not stored refs pending

Characterization of Invariant subspaces in the polydisc

Amit Maji, Aneesh Mundayadan, Jaydeb Sarkar, Sankar T. R

arxiv:1710.09853 v2 · 2017-10-26 · math.FA · math.CV · 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{EOETQ76BEYRGWF5CKCV3QSSGUG}

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	2026-05-18T00:30:54.448474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2389387fc126226b17a250abb84a46a1a725faf70165ea1da9a011cded4b811a

Aliases

arxiv: 1710.09853 · arxiv_version: 1710.09853v2 · doi: 10.48550/arxiv.1710.09853 · pith_short_12: EOETQ76BEYRG · pith_short_16: EOETQ76BEYRGWF5C · pith_short_8: EOETQ76B

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/EOETQ76BEYRGWF5CKCV3QSSGUG \
  | 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: 2389387fc126226b17a250abb84a46a1a725faf70165ea1da9a011cded4b811a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7fd7845f99a3c27310bef0bf5e7ec3dbadf951508bbfdcc18490bc5e68df0d0",
    "cross_cats_sorted": [
      "math.CV",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-10-26T18:24:56Z",
    "title_canon_sha256": "fae0e5afdee8e232de86cce96eef1937c8c4c911390fbb19f9526156617e3089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09853",
    "kind": "arxiv",
    "version": 2
  }
}