Pith Number

pith:YT7NCWT7

pith:2019:YT7NCWT7QLCJAEN5WPLG4TC4B2

not attested not anchored not stored refs pending

Sparsity Constrained Distributed Unmixing of Hyperspectral Data

Hadi Zayyani, Roozbeh Rajabi, Sara Khoshsokhan

arxiv:1902.07593 v1 · 2019-02-20 · 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{YT7NCWT7QLCJAEN5WPLG4TC4B2}

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	2026-05-17T23:53:07.419397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4fed15a7f82c49011bdb3d66e4c5c0e93bd3f12cd09e7a953bf8eb6b5895df1

Aliases

arxiv: 1902.07593 · arxiv_version: 1902.07593v1 · doi: 10.48550/arxiv.1902.07593 · pith_short_12: YT7NCWT7QLCJ · pith_short_16: YT7NCWT7QLCJAEN5 · pith_short_8: YT7NCWT7

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/YT7NCWT7QLCJAEN5WPLG4TC4B2 \
  | 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: c4fed15a7f82c49011bdb3d66e4c5c0e93bd3f12cd09e7a953bf8eb6b5895df1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6073a3ac8a8e730b216eab48c242b3c8b378f814cb9dbabb0aa01c845d499012",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-02-20T15:16:06Z",
    "title_canon_sha256": "9a66d2d3c3adfd7a9cdd57387d944bf6b2c622895b828a08b4424bdebecbdb14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07593",
    "kind": "arxiv",
    "version": 1
  }
}