Pith Number

pith:A2T76MIG

pith:2018:A2T76MIG4M4OVEKL3B6HNGYSUI

not attested not anchored not stored refs pending

Hyperspectral unmixing with spectral variability using adaptive bundles and double sparsity

Mathieu Fauvel, Nicolas Dobigeon, Tatsumi Uezato

arxiv:1804.11132 v1 · 2018-04-30 · eess.IV · physics.data-an · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A2T76MIG4M4OVEKL3B6HNGYSUI}

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	2026-05-17T23:42:30.640168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a7ff3106e338ea914bd87c769b12a205ca2ddab93702e070028c66026e43be

Aliases

arxiv: 1804.11132 · arxiv_version: 1804.11132v1 · doi: 10.48550/arxiv.1804.11132 · pith_short_12: A2T76MIG4M4O · pith_short_16: A2T76MIG4M4OVEKL · pith_short_8: A2T76MIG

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/A2T76MIG4M4OVEKL3B6HNGYSUI \
  | 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: 06a7ff3106e338ea914bd87c769b12a205ca2ddab93702e070028c66026e43be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78410557ffdf83df5a22a5fca3bd910cc96837c9a7ef86d227e14062efefdc18",
    "cross_cats_sorted": [
      "physics.data-an",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-04-30T11:49:37Z",
    "title_canon_sha256": "feff5d41d0d30175e416e1b5bb1fd3d5493faa0864e344d751af0c248fbe81af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.11132",
    "kind": "arxiv",
    "version": 1
  }
}