Pith Number

pith:QB2ZJEAY

pith:2019:QB2ZJEAYRTFS4SQP4AAK3NNJO7

not attested not anchored not stored refs pending

The Discrete Fourier Transform for Golden Angle Linogram Sampling

Elias S. Helou, Gabor T. Herman, Kai Tobias Block, Leon Axel, Marcelo V. W. Zibetti, Ravinder R. Regatte

arxiv:1904.01152 v2 · 2019-04-02 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QB2ZJEAYRTFS4SQP4AAK3NNJO7}

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	2026-07-05T00:31:00.709570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80759490188ccb2e4a0fe000adb5a977d2d8077967803b981251d4398aad2b3c

Aliases

arxiv: 1904.01152 · arxiv_version: 1904.01152v2 · doi: 10.48550/arxiv.1904.01152 · pith_short_12: QB2ZJEAYRTFS · pith_short_16: QB2ZJEAYRTFS4SQP · pith_short_8: QB2ZJEAY

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/QB2ZJEAYRTFS4SQP4AAK3NNJO7 \
  | 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: 80759490188ccb2e4a0fe000adb5a977d2d8077967803b981251d4398aad2b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72d5ef0286e4192c8fbf03aa6501f483535a1ed5ebd6c9e81cfa039679e61af5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-04-02T00:23:13Z",
    "title_canon_sha256": "53d75b34fc34205cc2743251a8e64345fb4c7dee51340b63717cf1ff01ac7180"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01152",
    "kind": "arxiv",
    "version": 2
  }
}