Pith Number

pith:EQTQEEVW

pith:1993:EQTQEEVWWXDM4ACJ3HAKNX2PAD

not attested not anchored not stored refs pending

Structure of total subspaces of dual Banach spaces

Mikhail I. Ostrovskii

arxiv:math/9310218 v1 · 1993-10-26 · 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{EQTQEEVWWXDM4ACJ3HAKNX2PAD}

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	2026-05-18T04:41:16.629470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24270212b6b5c6ce0049d9c0a6df4f00f1e8767ec0c6b66ca72eddf99202296c

Aliases

arxiv: math/9310218 · arxiv_version: math/9310218v1 · doi: 10.48550/arxiv.math/9310218 · pith_short_12: EQTQEEVWWXDM · pith_short_16: EQTQEEVWWXDM4ACJ · pith_short_8: EQTQEEVW

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/EQTQEEVWWXDM4ACJ3HAKNX2PAD \
  | 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: 24270212b6b5c6ce0049d9c0a6df4f00f1e8767ec0c6b66ca72eddf99202296c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "612d3bd86357dbb278af3d869d80af9afa2a6d6ac331b253568c9fd651cfe739",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.FA",
    "submitted_at": "1993-10-26T15:12:34Z",
    "title_canon_sha256": "caeac7a3a630056790303146aac91fb9f12344243afaf60f2903a0f5c9759ecc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9310218",
    "kind": "arxiv",
    "version": 1
  }
}