Pith Number

pith:IDJKVJG5

pith:1993:IDJKVJG5WRW3R6OXJLDLFT75TV

not attested not anchored not stored refs pending

W^*-derived sets of transfinite order of subspaces of dual Banach spaces

Mikhail I. Ostrovskii

arxiv:math/9303203 v1 · 1993-03-29 · 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{IDJKVJG5WRW3R6OXJLDLFT75TV}

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	2026-05-18T04:41:16.667635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40d2aaa4ddb46db8f9d74ac6b2cffd9d7f85d55715f3518f3e006d40aefcd951

Aliases

arxiv: math/9303203 · arxiv_version: math/9303203v1 · doi: 10.48550/arxiv.math/9303203 · pith_short_12: IDJKVJG5WRW3 · pith_short_16: IDJKVJG5WRW3R6OX · pith_short_8: IDJKVJG5

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/IDJKVJG5WRW3R6OXJLDLFT75TV \
  | 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: 40d2aaa4ddb46db8f9d74ac6b2cffd9d7f85d55715f3518f3e006d40aefcd951

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d946e0fc2547b14505c5ceed89935472438d5e0f5ccc932333fda8c78f13d412",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.FA",
    "submitted_at": "1993-03-29T17:51:57Z",
    "title_canon_sha256": "5af923bf8f3be959c92751af8dd611238444a13e8896c8027e19331ef5dbdaa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9303203",
    "kind": "arxiv",
    "version": 1
  }
}