Pith Number

pith:6RWJOSAM

pith:1994:6RWJOSAMUHUCYID5W7L4QUPORX

not attested not anchored not stored refs pending

Quojections without Banach subspaces

Mikhail I. Ostrovskii

arxiv:math/9403209 v1 · 1994-03-28 · 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{6RWJOSAMUHUCYID5W7L4QUPORX}

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	2026-05-18T04:41:16.622393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f46c97480ca1e82c207db7d7c851ee8dfb1142ad35eee542f405410f8614ca85

Aliases

arxiv: math/9403209 · arxiv_version: math/9403209v1 · doi: 10.48550/arxiv.math/9403209 · pith_short_12: 6RWJOSAMUHUC · pith_short_16: 6RWJOSAMUHUCYID5 · pith_short_8: 6RWJOSAM

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/6RWJOSAMUHUCYID5W7L4QUPORX \
  | 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: f46c97480ca1e82c207db7d7c851ee8dfb1142ad35eee542f405410f8614ca85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "419d11b22c44be3d24992f313c382112ca3556d7f0f1267d0b0fc5aa9ed21a41",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.FA",
    "submitted_at": "1994-03-28T17:54:36Z",
    "title_canon_sha256": "e47a984121b014473d36f2c167b1180f11331ed7ef2f30d8282d706af86be9a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9403209",
    "kind": "arxiv",
    "version": 1
  }
}