Pith Number

pith:FALQIWR4

pith:2014:FALQIWR4AN6W6MTOULV62UWEZ7

not attested not anchored not stored refs pending

On the half-Hartley transform, its iteration and composition with Fourier transforms

Semyon Yakubovich

arxiv:1403.3848 v1 · 2014-03-15 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FALQIWR4AN6W6MTOULV62UWEZ7}

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	2026-05-18T02:56:13.316816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2817045a3c037d6f326ea2ebed52c4cffabeae521f1ff34fadfb0cee4b3e8407

Aliases

arxiv: 1403.3848 · arxiv_version: 1403.3848v1 · doi: 10.48550/arxiv.1403.3848 · pith_short_12: FALQIWR4AN6W · pith_short_16: FALQIWR4AN6W6MTO · pith_short_8: FALQIWR4

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/FALQIWR4AN6W6MTOULV62UWEZ7 \
  | 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: 2817045a3c037d6f326ea2ebed52c4cffabeae521f1ff34fadfb0cee4b3e8407

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bdb62651c6b67957af49ff61b9e08747b40740d859ba0c466fa2f71860b54b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2014-03-15T20:09:28Z",
    "title_canon_sha256": "69e6ae5709b38aa02fcecff433a8d691e89216f7dfac33789ae7cca99d33224b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3848",
    "kind": "arxiv",
    "version": 1
  }
}