Pith Number

pith:Q52VOWYJ

pith:2005:Q52VOWYJYZPUJRQK3DV53326FR

not attested not anchored not stored refs pending

Trellis-Based Equalization for Sparse ISI Channels Revisited

Ingmar Land, Jan Mietzner, Peter A. Hoeher, Sabah Badri-Hoeher

arxiv:cs/0508051 v1 · 2005-08-10 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q52VOWYJYZPUJRQK3DV53326FR}

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	2026-05-18T00:58:26.755881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8775575b09c65f44c60ad8ebddef5e2c75552808709c91379ad2e034ac630eeb

Aliases

arxiv: cs/0508051 · arxiv_version: cs/0508051v1 · doi: 10.48550/arxiv.cs/0508051 · pith_short_12: Q52VOWYJYZPU · pith_short_16: Q52VOWYJYZPUJRQK · pith_short_8: Q52VOWYJ

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/Q52VOWYJYZPUJRQK3DV53326FR \
  | 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: 8775575b09c65f44c60ad8ebddef5e2c75552808709c91379ad2e034ac630eeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dc091be7317cc57872d01bd0cda3e6d988a899011093352b2a41538655b44ae",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2005-08-10T09:37:52Z",
    "title_canon_sha256": "7ce9cf15d9da07e3056706535fe82367ec46cbdaf712c790af3b34a507bfcd8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0508051",
    "kind": "arxiv",
    "version": 1
  }
}