Pith Number

pith:CR57GSVG

pith:2018:CR57GSVGKABU2BI6OB5LAEQUF7

not attested not anchored not stored refs pending

Signals as Parametric Curves: Application to Independent Component Analysis and Blind Source Separation

Anand Rangarajan, Birmingham Hang Guan

arxiv:1807.03442 v1 · 2018-07-10 · 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{CR57GSVGKABU2BI6OB5LAEQUF7}

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	2026-05-18T00:11:10.431234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

147bf34aa650034d051e707ab012142fca5ae56486f8788d6d1b319eee5af758

Aliases

arxiv: 1807.03442 · arxiv_version: 1807.03442v1 · doi: 10.48550/arxiv.1807.03442 · pith_short_12: CR57GSVGKABU · pith_short_16: CR57GSVGKABU2BI6 · pith_short_8: CR57GSVG

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/CR57GSVGKABU2BI6OB5LAEQUF7 \
  | 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: 147bf34aa650034d051e707ab012142fca5ae56486f8788d6d1b319eee5af758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30f43870c8a061bfb6e72f8bb152276a7700e719234f8896361d1f6928c6e8e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-07-10T01:39:35Z",
    "title_canon_sha256": "a1013b1368301d53346bd4ade152e600dea736c2eb03eee58224a14fc3db08d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03442",
    "kind": "arxiv",
    "version": 1
  }
}