Pith Number

pith:MSBNZVD4

pith:2018:MSBNZVD4GM6W4MDKTVOLFRARU6

not attested not anchored not stored refs pending

A survey on Tingley's problem for operator algebras

Antonio M. Peralta

arxiv:1801.02473 v2 · 2018-01-08 · math.OA · 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{MSBNZVD4GM6W4MDKTVOLFRARU6}

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	2026-05-18T00:26:22.915361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6482dcd47c333d6e306a9d5cb2c411a7a6ce878aa90290172ee505271ae735b4

Aliases

arxiv: 1801.02473 · arxiv_version: 1801.02473v2 · doi: 10.48550/arxiv.1801.02473 · pith_short_12: MSBNZVD4GM6W · pith_short_16: MSBNZVD4GM6W4MDK · pith_short_8: MSBNZVD4

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/MSBNZVD4GM6W4MDKTVOLFRARU6 \
  | 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: 6482dcd47c333d6e306a9d5cb2c411a7a6ce878aa90290172ee505271ae735b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c87c4f52299834d77d163f7ed87a67f71d1d532a9e4682348bcdc98637d0bc0",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-01-08T15:11:38Z",
    "title_canon_sha256": "7c187ee1e1678ae2924ca1b2b47514507d375ad11a1bcdc5efbd30f2d31c9ff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02473",
    "kind": "arxiv",
    "version": 2
  }
}