Pith Number

pith:QTGC5RQV

pith:2020:QTGC5RQVCDHIDF6DOEUNUVZ2AL

not attested not anchored not stored refs pending

A Plug-and-Play Priors Framework for Hyperspectral Unmixing

Jie Chen, Min Zhao, Wei Chen, Xiuheng Wang

arxiv:2012.13074 v3 · 2020-12-24 · eess.SP · 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{QTGC5RQVCDHIDF6DOEUNUVZ2AL}

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	2026-07-05T02:34:45.882027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84cc2ec61510ce8197c37128da573a02f2f4d65b9b2796b009323acb262195c5

Aliases

arxiv: 2012.13074 · arxiv_version: 2012.13074v3 · doi: 10.48550/arxiv.2012.13074 · pith_short_12: QTGC5RQVCDHI · pith_short_16: QTGC5RQVCDHIDF6D · pith_short_8: QTGC5RQV

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/QTGC5RQVCDHIDF6DOEUNUVZ2AL \
  | 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: 84cc2ec61510ce8197c37128da573a02f2f4d65b9b2796b009323acb262195c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3870f29d7b0180b58c00e1472ccdf5517e4c14ce894d64bd12d38bf9e091c581",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2020-12-24T02:48:50Z",
    "title_canon_sha256": "ec64081e5c545f5e49e23e6cdbe49c0d32bbc2f32d4bfbfd7a33078701a791b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.13074",
    "kind": "arxiv",
    "version": 3
  }
}