Pith Number

pith:ZR4WAVBR

pith:2016:ZR4WAVBRGGRG2AMZIBRAXPUBYE

not attested not anchored not stored refs pending

C*-Convexity of Norm Unit Balls

Mohsen Kian

arxiv:1604.02812 v1 · 2016-04-11 · math.FA · 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{ZR4WAVBRGGRG2AMZIBRAXPUBYE}

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	2026-05-18T01:17:22.099051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc7960543131a26d019940620bbe81c139fbdd22d381ecda3747fb7abad0aabb

Aliases

arxiv: 1604.02812 · arxiv_version: 1604.02812v1 · doi: 10.48550/arxiv.1604.02812 · pith_short_12: ZR4WAVBRGGRG · pith_short_16: ZR4WAVBRGGRG2AMZ · pith_short_8: ZR4WAVBR

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/ZR4WAVBRGGRG2AMZIBRAXPUBYE \
  | 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: cc7960543131a26d019940620bbe81c139fbdd22d381ecda3747fb7abad0aabb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9219c6ab3c06263b3379170ccc91f1a00e25ec0f81ce252db99aff850024a90",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2016-04-11T07:12:52Z",
    "title_canon_sha256": "533d74a94510b691fa9ae8b675fcb3e958f4b91496f51018e57493f7ac4ebf62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02812",
    "kind": "arxiv",
    "version": 1
  }
}