Pith Number

pith:P5WSMVYF

pith:2021:P5WSMVYF6TME4B2L7EVFSBSJFC

not attested not anchored not stored refs pending

Identifying First-order Lowpass Graph Signals using Perron Frobenius Theorem

Hoi-To Wai, Yiran He

arxiv:2101.07938 v1 · 2021-01-20 · 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{P5WSMVYF6TME4B2L7EVFSBSJFC}

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	2026-07-05T02:08:23.517088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f6d265705f4d84e074bf92a59064928803547d08f3a2751ba728d2451b55316

Aliases

arxiv: 2101.07938 · arxiv_version: 2101.07938v1 · doi: 10.48550/arxiv.2101.07938 · pith_short_12: P5WSMVYF6TME · pith_short_16: P5WSMVYF6TME4B2L · pith_short_8: P5WSMVYF

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/P5WSMVYF6TME4B2L7EVFSBSJFC \
  | 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: 7f6d265705f4d84e074bf92a59064928803547d08f3a2751ba728d2451b55316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8c0cb3458e0030ba452458ae3f940e1f7703d6d1281c7a232b25c053c111f58",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-01-20T02:50:57Z",
    "title_canon_sha256": "b9768c401f65ee713dc06ac0ec3ac83f5899e245f7135248ecbb9ddd5525df14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07938",
    "kind": "arxiv",
    "version": 1
  }
}