Pith Number

pith:ZM4J7M3I

pith:2026:ZM4J7M3IGTN3ME6SC7WN5RMHSG

not attested not anchored not stored refs pending

A von Neumann-Jordan Constant of Non-Normable Metrics

Doan Huu Hieu, Nguyen Duy Cuong

arxiv:2605.19295 v1 · 2026-05-19 · 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{ZM4J7M3IGTN3ME6SC7WN5RMHSG}

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	2026-05-20T01:05:38.111416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb389fb36834dbb613d217ecdec58791b1f150ac8565a3e26b2faab48de10fe0

Aliases

arxiv: 2605.19295 · arxiv_version: 2605.19295v1 · doi: 10.48550/arxiv.2605.19295 · pith_short_12: ZM4J7M3IGTN3 · pith_short_16: ZM4J7M3IGTN3ME6S · pith_short_8: ZM4J7M3I

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/ZM4J7M3IGTN3ME6SC7WN5RMHSG \
  | 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: cb389fb36834dbb613d217ecdec58791b1f150ac8565a3e26b2faab48de10fe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e41cd368d413e47554b529cb612b38027cd392e60478e1181c1abe94cdf2e20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2026-05-19T03:14:28Z",
    "title_canon_sha256": "9c6f1a124a5b5aa4a71ae1b446aab3d00c6c95525938cb7df5326688617b2b9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19295",
    "kind": "arxiv",
    "version": 1
  }
}