Pith Number

pith:D3YJLBFY

pith:2014:D3YJLBFYJC2N2PPJO3KESFESFU

not attested not anchored not stored refs pending

Matrix Coherency Graph: A Tool for Improving Sparse Coding Performance

Alireza Zaeemzadeh, Mahdi Barzegar Khalilsarai, Mohsen Joneidi, Nazanin Rahnavard

arxiv:1412.6125 v1 · 2014-11-30 · 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{D3YJLBFYJC2N2PPJO3KESFESFU}

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	2026-05-18T02:30:54.392950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ef09584b848b4dd3de976d44914922d34345ec3c04d2e2e95fc8ca823265d65

Aliases

arxiv: 1412.6125 · arxiv_version: 1412.6125v1 · doi: 10.48550/arxiv.1412.6125 · pith_short_12: D3YJLBFYJC2N · pith_short_16: D3YJLBFYJC2N2PPJ · pith_short_8: D3YJLBFY

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/D3YJLBFYJC2N2PPJO3KESFESFU \
  | 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: 1ef09584b848b4dd3de976d44914922d34345ec3c04d2e2e95fc8ca823265d65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa04362f255309ef030d10af7f2de7d062d10fb8a74fabcc91609d3adc406a3e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-11-30T08:04:09Z",
    "title_canon_sha256": "53a6d3890820ddd60b8749989d06d245ce306e4800e1d123f2560eea841eb430"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6125",
    "kind": "arxiv",
    "version": 1
  }
}