Pith Number

pith:YA4QOZ2Y

pith:2015:YA4QOZ2YZOYIWFMC4J7D25MNWS

not attested not anchored not stored refs pending

Similarity degree of Fourier algebras

Ebrahim Samei, Hun Hee Lee, Nico Spronk

arxiv:1511.03423 v3 · 2015-11-11 · math.FA · math.OA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YA4QOZ2YZOYIWFMC4J7D25MNWS}

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	2026-05-18T01:18:54.144409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c039076758cbb08b1582e27e3d758db49f73e1ad77f4ce0c3f52a8dbd9046eed

Aliases

arxiv: 1511.03423 · arxiv_version: 1511.03423v3 · doi: 10.48550/arxiv.1511.03423 · pith_short_12: YA4QOZ2YZOYI · pith_short_16: YA4QOZ2YZOYIWFMC · pith_short_8: YA4QOZ2Y

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/YA4QOZ2YZOYIWFMC4J7D25MNWS \
  | 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: c039076758cbb08b1582e27e3d758db49f73e1ad77f4ce0c3f52a8dbd9046eed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30445db047103f86a0d03c4533d3add40b1d927fd4227c7bcc9abc8791eefdb3",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2015-11-11T09:11:46Z",
    "title_canon_sha256": "241e0c898395ccbc52fbfa8370815a7205e4374984ec96aea4b030f8eb459e19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03423",
    "kind": "arxiv",
    "version": 3
  }
}