Pith Number

pith:7Z6E7CBW

pith:2018:7Z6E7CBWTEZ5LFDARXFZBPJ3YP

not attested not anchored not stored refs pending

Generalizing Choi-like maps

Adam Rutkowski, Dariusz Chru\'sci\'nski, Marcin Marciniak

arxiv:1802.05558 v1 · 2018-02-13 · 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{7Z6E7CBWTEZ5LFDARXFZBPJ3YP}

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	2026-05-18T00:23:15.330532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe7c4f88369933d594608dcb90bd3bc3dfb4694058577b8529305d8c8eb6f866

Aliases

arxiv: 1802.05558 · arxiv_version: 1802.05558v1 · doi: 10.48550/arxiv.1802.05558 · pith_short_12: 7Z6E7CBWTEZ5 · pith_short_16: 7Z6E7CBWTEZ5LFDA · pith_short_8: 7Z6E7CBW

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/7Z6E7CBWTEZ5LFDARXFZBPJ3YP \
  | 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: fe7c4f88369933d594608dcb90bd3bc3dfb4694058577b8529305d8c8eb6f866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20c79e79571c5a4f5c4b9cc87c4128302ce49b230484c74b779497649e168e9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-02-13T20:54:40Z",
    "title_canon_sha256": "a142560fe390b47aca4fb2e412099eeda886ecb25ee744f3d1e1b733f8be7400"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05558",
    "kind": "arxiv",
    "version": 1
  }
}