Pith Number

pith:7PRSAGUJ

pith:2015:7PRSAGUJIIAA3UZDN4VBNH764O

not attested not anchored not stored refs pending

Fast Spectral Unmixing based on Dykstra's Alternating Projection

Jean-Yves Tourneret, Jose Bioucas-Dias, Nicolas Dobigeon, Qi Wei

arxiv:1505.01740 v1 · 2015-05-07 · 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{7PRSAGUJIIAA3UZDN4VBNH764O}

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	2026-05-18T02:16:40.180451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe3201a8942000dd3236f2a169ffee3b5870d228e2d7a1166472978d70152a0

Aliases

arxiv: 1505.01740 · arxiv_version: 1505.01740v1 · doi: 10.48550/arxiv.1505.01740 · pith_short_12: 7PRSAGUJIIAA · pith_short_16: 7PRSAGUJIIAA3UZD · pith_short_8: 7PRSAGUJ

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/7PRSAGUJIIAA3UZDN4VBNH764O \
  | 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: fbe3201a8942000dd3236f2a169ffee3b5870d228e2d7a1166472978d70152a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d46b35e3b8f8968d74b03b85bbe05871ae6d9208527ecbf63bca0c0e5134f7db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-05-07T15:22:33Z",
    "title_canon_sha256": "eb8da7d18bfe7e2576c31d8364d42223d1b94358f5a0ecf8832b2b354a0ef910"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01740",
    "kind": "arxiv",
    "version": 1
  }
}