Pith Number

pith:D7X5RTO5

pith:2018:D7X5RTO5LHHDLZPMACU7GTEWDC

not attested not anchored not stored refs pending

On (approximate) homological notions of certain Banach algebras

Amir Sahami

arxiv:1806.01592 v1 · 2018-06-05 · 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{D7X5RTO5LHHDLZPMACU7GTEWDC}

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	2026-05-18T00:14:12.326462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fefd8cddd59ce35e5ec00a9f34c96188adfefcdc0cd57879053eb2724a45901

Aliases

arxiv: 1806.01592 · arxiv_version: 1806.01592v1 · doi: 10.48550/arxiv.1806.01592 · pith_short_12: D7X5RTO5LHHD · pith_short_16: D7X5RTO5LHHDLZPM · pith_short_8: D7X5RTO5

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/D7X5RTO5LHHDLZPMACU7GTEWDC \
  | 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: 1fefd8cddd59ce35e5ec00a9f34c96188adfefcdc0cd57879053eb2724a45901

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7b685dab0909b33a4a381dc64f5212c895e7c8fc401a1001cff60f7596b1069",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-06-05T10:09:56Z",
    "title_canon_sha256": "c283f05b9d7e36b1cf31f384e81e403e415bc3bbae877c0cd1a266fc7a00096b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01592",
    "kind": "arxiv",
    "version": 1
  }
}