Pith Number

pith:7LJHV3ET

pith:2012:7LJHV3ETJNL67LMAIMIYYCEL4U

not attested not anchored not stored refs pending

Stable image reconstruction using total variation minimization

Deanna Needell, Rachel Ward

arxiv:1202.6429 v9 · 2012-02-29 · cs.CV · cs.IT · math.IT · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LJHV3ETJNL67LMAIMIYYCEL4U}

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	2026-05-18T02:21:17.481232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fad27aec934b57efad8043118c088be530237d0262a28d2d45965c2eaf4d9735

Aliases

arxiv: 1202.6429 · arxiv_version: 1202.6429v9 · doi: 10.48550/arxiv.1202.6429 · pith_short_12: 7LJHV3ETJNL6 · pith_short_16: 7LJHV3ETJNL67LMA · pith_short_8: 7LJHV3ET

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/7LJHV3ETJNL67LMAIMIYYCEL4U \
  | 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: fad27aec934b57efad8043118c088be530237d0262a28d2d45965c2eaf4d9735

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88006d0495c76e7e0230383b23336bffb601e14900e65d6a0ae79ada1eec497c",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-02-29T03:43:01Z",
    "title_canon_sha256": "ad87bbe70ddb77840fafd429b4d0df8e2d3d06f041713a2b2c024c95ca89d2ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.6429",
    "kind": "arxiv",
    "version": 9
  }
}