Pith Number

pith:LQ62CDIH

pith:2018:LQ62CDIHYQU4VP2GDMMQSKKOVO

not attested not anchored not stored refs pending

A Note on $g$-Angle between Two Subspaces in a Normed Space

Hendra Gunawan, Muhammad Nur

arxiv:1809.01909 v2 · 2018-09-06 · 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{LQ62CDIHYQU4VP2GDMMQSKKOVO}

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	2026-05-17T23:52:52.313894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c3da10d07c429cabf461b1909294eaba879dae96e8b3f85fb1a797548c43b74

Aliases

arxiv: 1809.01909 · arxiv_version: 1809.01909v2 · doi: 10.48550/arxiv.1809.01909 · pith_short_12: LQ62CDIHYQU4 · pith_short_16: LQ62CDIHYQU4VP2G · pith_short_8: LQ62CDIH

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/LQ62CDIHYQU4VP2GDMMQSKKOVO \
  | 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: 5c3da10d07c429cabf461b1909294eaba879dae96e8b3f85fb1a797548c43b74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f6918167e07ff9d12ad85e8486075470544b75c07c7f0bcb96b1ace82ddc0c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-09-06T10:05:13Z",
    "title_canon_sha256": "ba5e35cfcbdf87833c0ed49ef24a1a44ed356ab380afc9f52675c50ec4ab06ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01909",
    "kind": "arxiv",
    "version": 2
  }
}