Pith Number

pith:DQ6N2UTJ

pith:2017:DQ6N2UTJB4T4GFEPSLZIVLU74W

not attested not anchored not stored refs pending

Combining Contrast Invariant L1 Data Fidelities with Nonlinear Spectral Image Decomposition

Christoph Brune, Leonie Zeune, Leon W.M.M. Terstappen, Stephan A. van Gils

arxiv:1703.05560 v1 · 2017-03-16 · math.NA · cs.CV · math.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{DQ6N2UTJB4T4GFEPSLZIVLU74W}

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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	2026-05-18T00:48:33.939478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c3cdd52690f27c3148f92f28aae9fe5be90a8737fa2fd615746f1b47cdc1e1a

Aliases

arxiv: 1703.05560 · arxiv_version: 1703.05560v1 · doi: 10.48550/arxiv.1703.05560 · pith_short_12: DQ6N2UTJB4T4 · pith_short_16: DQ6N2UTJB4T4GFEP · pith_short_8: DQ6N2UTJ

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/DQ6N2UTJB4T4GFEPSLZIVLU74W \
  | 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: 1c3cdd52690f27c3148f92f28aae9fe5be90a8737fa2fd615746f1b47cdc1e1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96640e43f21781424b671dbb980031c879161845ddc3ac70820fd49c6c10044",
    "cross_cats_sorted": [
      "cs.CV",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-16T11:12:13Z",
    "title_canon_sha256": "917205c1347be1c135b7ca62ec2bf9a40f1d5054026b119c078dfac23dbb15ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05560",
    "kind": "arxiv",
    "version": 1
  }
}