Pith Number

pith:AHT7KNLU

pith:2025:AHT7KNLUD764QLKEPOLAXC4ECR

not attested not anchored not stored refs pending

Iterative Polynomial Approximation Algorithms for Inverse Graph Filters

Cheng cheng, Cong Zheng, Qiyu Sun

arxiv:2504.14341 v1 · 2025-04-19 · eess.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{AHT7KNLUD764QLKEPOLAXC4ECR}

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	2026-07-05T10:51:42.089367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e7f535741ffdc82d447b960b8b84146c09c17276d05c922febc9df64474b41

Aliases

arxiv: 2504.14341 · arxiv_version: 2504.14341v1 · doi: 10.48550/arxiv.2504.14341 · pith_short_12: AHT7KNLUD764 · pith_short_16: AHT7KNLUD764QLKE · pith_short_8: AHT7KNLU

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/AHT7KNLUD764QLKEPOLAXC4ECR \
  | 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: 01e7f535741ffdc82d447b960b8b84146c09c17276d05c922febc9df64474b41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6aae58a66691474d63cd55d63349254decb99827bfe75c589ddc53427af7708f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-04-19T16:18:16Z",
    "title_canon_sha256": "34cb3c0e33d54a50aa0fa46cc111c0727f675230413476a7eb378a6a0432b96c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.14341",
    "kind": "arxiv",
    "version": 1
  }
}