Pith Number

pith:RERAYJ32

pith:2008:RERAYJ32W2D5L3TLYIN2LMUJY7

not attested not anchored not stored refs pending

Fast Computation of Partial Fourier Transforms

Lexing Ying, Sergey Fomel

arxiv:0802.1554 v1 · 2008-02-12 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RERAYJ32W2D5L3TLYIN2LMUJY7}

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	2026-06-03T22:06:04.410963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89220c277ab687d5ee6bc21ba5b289c7f772332faa329f4a00af5044d1fd1ca3

Aliases

arxiv: 0802.1554 · arxiv_version: 0802.1554v1 · doi: 10.48550/arxiv.0802.1554 · pith_short_12: RERAYJ32W2D5 · pith_short_16: RERAYJ32W2D5L3TL · pith_short_8: RERAYJ32

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/RERAYJ32W2D5L3TLYIN2LMUJY7 \
  | 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: 89220c277ab687d5ee6bc21ba5b289c7f772332faa329f4a00af5044d1fd1ca3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac3b216589eb0077c7a83e4c417f25e97a0874bf9524b782a8698bd41743eb7d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2008-02-12T02:10:41Z",
    "title_canon_sha256": "2429150f14bf5a537f3a9f9e2397c67bb299b4211a733368d80006b70412834d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.1554",
    "kind": "arxiv",
    "version": 1
  }
}