Pith Number

pith:J52FVLBV

pith:2017:J52FVLBVURMX46IJBLYB3RJPCQ

not attested not anchored not stored refs pending

A Digraph Fourier Transform With Spread Frequency Components

Ali Khodabakhsh, Evdokia Nikolova, Gonzalo Mateos, Rasoul Shafipour

arxiv:1705.10821 v1 · 2017-05-30 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J52FVLBVURMX46IJBLYB3RJPCQ}

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	2026-05-18T00:43:20.142830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f745aac35a4597e79090af01dc52f141065998030586af7e15adb38a62f8bc8

Aliases

arxiv: 1705.10821 · arxiv_version: 1705.10821v1 · doi: 10.48550/arxiv.1705.10821 · pith_short_12: J52FVLBVURMX · pith_short_16: J52FVLBVURMX46IJ · pith_short_8: J52FVLBV

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/J52FVLBVURMX46IJBLYB3RJPCQ \
  | 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: 4f745aac35a4597e79090af01dc52f141065998030586af7e15adb38a62f8bc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b865666c5b5025475ed278cac2b14360af7bb438ab7e21e3046e30dbb77eebb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2017-05-30T18:55:14Z",
    "title_canon_sha256": "6e52eba3121d753099bbe016bad282bf6ad0a5e3c799dae4779688ceba02d9d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10821",
    "kind": "arxiv",
    "version": 1
  }
}