Pith Number

pith:25TBPKIG

pith:2005:25TBPKIGM5FA4KVJHVNISBU7RR

not attested not anchored not stored refs pending

An Orthogonal Discrete Auditory Transform

Jack Xin, Yingyong Qi

arxiv:math/0502252 v1 · 2005-02-12 · 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{25TBPKIGM5FA4KVJHVNISBU7RR}

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	2026-06-03T22:06:16.366190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d76617a906674a0e2aa93d5a89069f8c7c5f3745a1b3602a2a433f3521ea3e3a

Aliases

arxiv: math/0502252 · arxiv_version: math/0502252v1 · doi: 10.48550/arxiv.math/0502252 · pith_short_12: 25TBPKIGM5FA · pith_short_16: 25TBPKIGM5FA4KVJ · pith_short_8: 25TBPKIG

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/25TBPKIGM5FA4KVJHVNISBU7RR \
  | 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: d76617a906674a0e2aa93d5a89069f8c7c5f3745a1b3602a2a433f3521ea3e3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "046a1911618364e883d2dcd7e82fc9530c5972441422a1150b86e44225fd7e2e",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2005-02-12T05:49:47Z",
    "title_canon_sha256": "00be1424545fc40a6c4f22659816beec6bae1c2154be8d809eaa81fa2965975a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502252",
    "kind": "arxiv",
    "version": 1
  }
}