Pith Number

pith:EWWU46BJ

pith:2014:EWWU46BJN3YJL7FUY62FAZJRB5

not attested not anchored not stored refs pending

Spectral Unmixing via Data-guided Sparsity

Bin Fan, Chunhong Pan, Feiyun Zhu, Gaofeng Meng, Shiming Xiang, Ying Wang

arxiv:1403.3155 v4 · 2014-03-13 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWWU46BJN3YJL7FUY62FAZJRB5}

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	2026-05-18T02:35:47.432865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25ad4e78296ef095fcb4c7b45065310f76ce7dc0310d0651bb552b4ac51d80c9

Aliases

arxiv: 1403.3155 · arxiv_version: 1403.3155v4 · doi: 10.48550/arxiv.1403.3155 · pith_short_12: EWWU46BJN3YJ · pith_short_16: EWWU46BJN3YJL7FU · pith_short_8: EWWU46BJ

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/EWWU46BJN3YJL7FUY62FAZJRB5 \
  | 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: 25ad4e78296ef095fcb4c7b45065310f76ce7dc0310d0651bb552b4ac51d80c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d62b94066824ca99dd56f69eaf176cdef145baeaa59121c797692a9ff0532a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-03-13T03:29:22Z",
    "title_canon_sha256": "81f74f03e61626c9690321506c651286f50bbdcd5330a44c69f2aa23886db6e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3155",
    "kind": "arxiv",
    "version": 4
  }
}