Pith Number

pith:4OLCWS55

pith:2016:4OLCWS55PSS5RMZZUHRL6XCP2U

not attested not anchored not stored refs pending

Free Hilbert Transforms

Eric Ricard, Tao Mei

arxiv:1605.02125 v4 · 2016-05-07 · 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{4OLCWS55PSS5RMZZUHRL6XCP2U}

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	2026-05-18T00:32:44.592442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3962b4bbd7ca5d8b339a1e2bf5c4fd51880cf0bef77e3cc06d8549ee50528d0

Aliases

arxiv: 1605.02125 · arxiv_version: 1605.02125v4 · doi: 10.48550/arxiv.1605.02125 · pith_short_12: 4OLCWS55PSS5 · pith_short_16: 4OLCWS55PSS5RMZZ · pith_short_8: 4OLCWS55

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/4OLCWS55PSS5RMZZUHRL6XCP2U \
  | 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: e3962b4bbd7ca5d8b339a1e2bf5c4fd51880cf0bef77e3cc06d8549ee50528d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed0effd6748c183fdfcc9b5f836d5f4da7e98500f18abde4feb859a8062c7e19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2016-05-07T01:13:08Z",
    "title_canon_sha256": "9a61b2f8813e3de04592107970bddd2f99e3ed02330f8520d0db1076ce429755"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02125",
    "kind": "arxiv",
    "version": 4
  }
}