Pith Number

pith:MEACBQ4M

pith:2021:MEACBQ4ME4HSZQI5X67CRTNVLR

not attested not anchored not stored refs pending

Robust CUR Decomposition: Theory and Imaging Applications

Deanna Needell, HanQin Cai, Keaton Hamm, Longxiu Huang

arxiv:2101.05231 v2 · 2021-01-05 · cs.CV · cs.LG · 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{MEACBQ4ME4HSZQI5X67CRTNVLR}

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	2026-07-05T05:45:23.650899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

610020c38c270f2cc11dbfbe28cdb55c4d6dfaaa299ec1d891e7d1d4c54b2836

Aliases

arxiv: 2101.05231 · arxiv_version: 2101.05231v2 · doi: 10.48550/arxiv.2101.05231 · pith_short_12: MEACBQ4ME4HS · pith_short_16: MEACBQ4ME4HSZQI5 · pith_short_8: MEACBQ4M

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/MEACBQ4ME4HSZQI5X67CRTNVLR \
  | 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: 610020c38c270f2cc11dbfbe28cdb55c4d6dfaaa299ec1d891e7d1d4c54b2836

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23c35c2fae45f06749747f6664252b88376d837d45bfcaaac8da31c5f421f978",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-01-05T17:58:15Z",
    "title_canon_sha256": "a7a51d96f808211f27de306621b371b89690029913179d90067d45049cde260e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.05231",
    "kind": "arxiv",
    "version": 2
  }
}