Pith Number

pith:F3SL73Q7

pith:2017:F3SL73Q7TDZQEUP6CTTIXIQJ5T

not attested not anchored not stored refs pending

Almost invariant half-spaces for operators on Hilbert space. II: operator matrices

Carl Pearcy, Eungil Ko, Il Bong Jung

arxiv:1710.09937 v1 · 2017-10-26 · 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{F3SL73Q7TDZQEUP6CTTIXIQJ5T}

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	2026-05-18T00:31:55.155563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ee4bfee1f98f30251fe14e68ba209ecd7dc32f3e066e3b5ecf0f598435da968

Aliases

arxiv: 1710.09937 · arxiv_version: 1710.09937v1 · doi: 10.48550/arxiv.1710.09937 · pith_short_12: F3SL73Q7TDZQ · pith_short_16: F3SL73Q7TDZQEUP6 · pith_short_8: F3SL73Q7

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/F3SL73Q7TDZQEUP6CTTIXIQJ5T \
  | 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: 2ee4bfee1f98f30251fe14e68ba209ecd7dc32f3e066e3b5ecf0f598435da968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0954581bf87f611877d5c0b3187b88a438e97613299bf70fe13508d3329c6ada",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-10-26T23:02:44Z",
    "title_canon_sha256": "ad6711c3bda9d7148cd60ec7bec73c92f99022ccb264b1865fc8c6dfff5de9ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09937",
    "kind": "arxiv",
    "version": 1
  }
}