Pith Number

pith:FQIRGQQK

pith:2019:FQIRGQQK264S3LJ75LU6Y4QNPO

not attested not anchored not stored refs pending

Some examples of $m$-isometries

A. Martin\'on, H. Zaway, T. Berm\'udez

arxiv:1902.08492 v1 · 2019-02-22 · 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{FQIRGQQK264S3LJ75LU6Y4QNPO}

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	2026-05-17T23:52:57.073555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c1113420ad7b92dad3feae9ec720d7b939770c46adf41fdb081eec540c7956c

Aliases

arxiv: 1902.08492 · arxiv_version: 1902.08492v1 · doi: 10.48550/arxiv.1902.08492 · pith_short_12: FQIRGQQK264S · pith_short_16: FQIRGQQK264S3LJ7 · pith_short_8: FQIRGQQK

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/FQIRGQQK264S3LJ75LU6Y4QNPO \
  | 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: 2c1113420ad7b92dad3feae9ec720d7b939770c46adf41fdb081eec540c7956c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff216f6bd808b21df1693c45f050ae3f01638792e87038f6c7e2ef4822417434",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-02-22T13:49:45Z",
    "title_canon_sha256": "9eb616b7d5f0f3d70d89a6030e18a5d0cc7f7b687fd4be9d3b97c9cd4c60ba78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08492",
    "kind": "arxiv",
    "version": 1
  }
}