Pith Number

pith:EE3B6WII

pith:2015:EE3B6WII6IG5C6V57MJQAC3IB7

not attested not anchored not stored refs pending

Connecting spatial and frequency domains for the quaternion Fourier transform

Hendrik De Bie, Klaus Rubrecht, Nele De Schepper, Stephen J. Sangwine, Todd A. Ell

arxiv:1506.07033 v1 · 2015-06-23 · 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{EE3B6WII6IG5C6V57MJQAC3IB7}

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	2026-05-18T01:40:55.259639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21361f5908f20dd17abdfb13000b680ff7fda208693879df707f5c59fdc5a04f

Aliases

arxiv: 1506.07033 · arxiv_version: 1506.07033v1 · doi: 10.48550/arxiv.1506.07033 · pith_short_12: EE3B6WII6IG5 · pith_short_16: EE3B6WII6IG5C6V5 · pith_short_8: EE3B6WII

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/EE3B6WII6IG5C6V57MJQAC3IB7 \
  | 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: 21361f5908f20dd17abdfb13000b680ff7fda208693879df707f5c59fdc5a04f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "685aa70f0d33159643d4f69f4ed625743258961d50dc21a9bf322beead6d5223",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-06-23T14:44:16Z",
    "title_canon_sha256": "e99b213eee3e51f13971def9c2849c17e285e71a10c44c14510ba3d299b4e6fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.07033",
    "kind": "arxiv",
    "version": 1
  }
}