Pith Number

pith:35RRYGAC

pith:2009:35RRYGAC5YAJ5CEJHEEGXWNPXP

not attested not anchored not stored refs pending

Discrete Hilbert transforms on sparse sequences

Kristian Seip, Tesfa Y. Mengestie, Yurii Belov

arxiv:0912.2899 v1 · 2009-12-15 · math.CV · 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{35RRYGAC5YAJ5CEJHEEGXWNPXP}

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	2026-05-18T02:31:48.770586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df631c1802ee009e888939086bd9afbbec85832f3ad019bffd032d5b07294a81

Aliases

arxiv: 0912.2899 · arxiv_version: 0912.2899v1 · doi: 10.48550/arxiv.0912.2899 · pith_short_12: 35RRYGAC5YAJ · pith_short_16: 35RRYGAC5YAJ5CEJ · pith_short_8: 35RRYGAC

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/35RRYGAC5YAJ5CEJHEEGXWNPXP \
  | 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: df631c1802ee009e888939086bd9afbbec85832f3ad019bffd032d5b07294a81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30ea126f546a636255d94179cd41c8a687d004c755b35a68c200019c0b07085d",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2009-12-15T14:03:57Z",
    "title_canon_sha256": "eaff6d896ce54d70c3c9f88a081336b71b1645236644a748d62896cbfcaed4a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2899",
    "kind": "arxiv",
    "version": 1
  }
}