Pith Number

pith:3NTGF4FS

pith:2018:3NTGF4FSIIXPR5JULU3EHIHJQV

not attested not anchored not stored refs pending

Hyperspectral Image Unmixing with Endmember Bundles and Group Sparsity Inducing Mixed Norms

Andrea L. Bertozzi, Christian Jutten, Jocelyn Chanussot, Lucas Drumetz, Travis R. Meyer

arxiv:1805.10232 v2 · 2018-05-25 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3NTGF4FSIIXPR5JULU3EHIHJQV}

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	2026-05-17T23:49:59.663956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db6662f0b2422ef8f5345d3643a0e9857c6efe23b9775c02e33ac76131ff8d99

Aliases

arxiv: 1805.10232 · arxiv_version: 1805.10232v2 · doi: 10.48550/arxiv.1805.10232 · pith_short_12: 3NTGF4FSIIXP · pith_short_16: 3NTGF4FSIIXPR5JU · pith_short_8: 3NTGF4FS

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/3NTGF4FSIIXPR5JULU3EHIHJQV \
  | 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: db6662f0b2422ef8f5345d3643a0e9857c6efe23b9775c02e33ac76131ff8d99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83a3d875405b1c3221cade5b8080ff6d0f0c5a35866506920697e7bdd095678e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-05-25T16:16:09Z",
    "title_canon_sha256": "ed1c722b154061dcd14e19e325d454e8592845ab6fc9c1d1703daa1ac46d8233"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10232",
    "kind": "arxiv",
    "version": 2
  }
}