Pith Number

pith:7CBU3EQX

pith:2018:7CBU3EQXZPTTSZH7AE33J7CREA

not attested not anchored not stored refs pending

Complete systems of unitary invariants for some classes of $2$-isometries

Akash Anand, Jan Stochel, Sameer Chavan, Zenon Jan Jab{\l}o\'nski

arxiv:1806.03229 v1 · 2018-06-08 · 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{7CBU3EQXZPTTSZH7AE33J7CREA}

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	2026-05-18T00:13:49.167140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8834d9217cbe73964ff0137b4fc512009361e34d02d18d6a34a469e0e5c552e

Aliases

arxiv: 1806.03229 · arxiv_version: 1806.03229v1 · doi: 10.48550/arxiv.1806.03229 · pith_short_12: 7CBU3EQXZPTT · pith_short_16: 7CBU3EQXZPTTSZH7 · pith_short_8: 7CBU3EQX

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/7CBU3EQXZPTTSZH7AE33J7CREA \
  | 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: f8834d9217cbe73964ff0137b4fc512009361e34d02d18d6a34a469e0e5c552e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed090c44daada222ee04ba45dd5907ce452a5118dcdc712afc22ebd4ec510b49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-06-08T15:51:58Z",
    "title_canon_sha256": "7fac66f9d639011b18923f1222d79b1c1a7b17d0062d71155daaf06cc198edd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03229",
    "kind": "arxiv",
    "version": 1
  }
}