Pith Number

pith:AB4LXUFM

pith:2017:AB4LXUFM65FBWX7SMEYZRZI67N

not attested not anchored not stored refs pending

On the complete boundedness of the Schur block product

Erik Christensen

arxiv:1712.05285 v3 · 2017-12-14 · math.OA · math-ph · math.MP · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AB4LXUFM65FBWX7SMEYZRZI67N}

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	2026-05-18T00:01:15.217443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0078bbd0acf74a1b5ff2613198e51efb73ee3db1cb4e6b219843d7e7c930be94

Aliases

arxiv: 1712.05285 · arxiv_version: 1712.05285v3 · doi: 10.48550/arxiv.1712.05285 · pith_short_12: AB4LXUFM65FB · pith_short_16: AB4LXUFM65FBWX7S · pith_short_8: AB4LXUFM

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/AB4LXUFM65FBWX7SMEYZRZI67N \
  | 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: 0078bbd0acf74a1b5ff2613198e51efb73ee3db1cb4e6b219843d7e7c930be94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "244375dfd30df9b5f572d918b7dcb5e0097ec318428c2ec6866be4f4a8b4b141",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2017-12-14T15:30:16Z",
    "title_canon_sha256": "8b655e5754b6a987dd8a54c6e9fc55b0b99b3e4d8d552fdbf4d0a713dfa40bc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05285",
    "kind": "arxiv",
    "version": 3
  }
}