Pith Number

pith:DBDR77U6

pith:2018:DBDR77U6KVV3SGYBY3COHZ5EDO

not attested not anchored not stored refs pending

Heuristics for Efficient Sparse Blind Source Separation

Cecile Chenot, Christophe Kervazo, Jerome Bobin

arxiv:1812.06737 v1 · 2018-12-17 · cs.LG · astro-ph.IM · eess.SP · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DBDR77U6KVV3SGYBY3COHZ5EDO}

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	2026-05-17T23:58:09.415647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18471ffe9e556bb91b01c6c4e3e7a41bad1001afb4db0fcfafb0e6d708677e3d

Aliases

arxiv: 1812.06737 · arxiv_version: 1812.06737v1 · doi: 10.48550/arxiv.1812.06737 · pith_short_12: DBDR77U6KVV3 · pith_short_16: DBDR77U6KVV3SGYB · pith_short_8: DBDR77U6

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/DBDR77U6KVV3SGYBY3COHZ5EDO \
  | 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: 18471ffe9e556bb91b01c6c4e3e7a41bad1001afb4db0fcfafb0e6d708677e3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64801d614f39ffd6d54f128a342d7c117bd9d8bd7e47a910415b41f1b0d499c7",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "eess.SP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-12-17T12:57:45Z",
    "title_canon_sha256": "ed60869d0d6b502f948146606b599efa0f2b19632dcc24c7b44b7328a8ca3a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06737",
    "kind": "arxiv",
    "version": 1
  }
}