Pith Number

pith:J76Z2MIS

pith:2025:J76Z2MISRBDZWSTN6TKSNSERZ4

not attested not anchored not stored refs pending

Brown-Halmos type characterization for the tetrablock

Milan Kumar Mal, Paramita Pramanick, Shubham Jain, Surjit Kumar

arxiv:2507.00998 v1 · 2025-07-01 · 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{J76Z2MISRBDZWSTN6TKSNSERZ4}

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	2026-07-05T11:30:19.421480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ffd9d311288479b4a6df4d526c891cf0d197447fcca26a92135ca5bbd6f181b

Aliases

arxiv: 2507.00998 · arxiv_version: 2507.00998v1 · doi: 10.48550/arxiv.2507.00998 · pith_short_12: J76Z2MISRBDZ · pith_short_16: J76Z2MISRBDZWSTN · pith_short_8: J76Z2MIS

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/J76Z2MISRBDZWSTN6TKSNSERZ4 \
  | 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: 4ffd9d311288479b4a6df4d526c891cf0d197447fcca26a92135ca5bbd6f181b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80c59224464ce225de4c39a4e848c1259675b805851eab9c1ad12875ee5f0258",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2025-07-01T17:50:10Z",
    "title_canon_sha256": "9bb09ff73417efb3e30db691103fc3768dc01660d9a278a6c3b3b72443dc5a9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.00998",
    "kind": "arxiv",
    "version": 1
  }
}