Pith Number

pith:MAPGMHYN

pith:2012:MAPGMHYNIE4OLI3LLUPHBRTPBR

not attested not anchored not stored refs pending

A combined first and second order variational approach for image reconstruction

Carola-Bibiane Sch\"onlieb, Konstantinos Papafitsoros

arxiv:1202.6341 v2 · 2012-02-27 · 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{MAPGMHYNIE4OLI3LLUPHBRTPBR}

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	2026-05-18T03:16:30.302661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

601e661f0d4138e5a36b5d1e70c66f0c5a01af1c2c6a9506c737c3db77f41c2d

Aliases

arxiv: 1202.6341 · arxiv_version: 1202.6341v2 · doi: 10.48550/arxiv.1202.6341 · pith_short_12: MAPGMHYNIE4O · pith_short_16: MAPGMHYNIE4OLI3L · pith_short_8: MAPGMHYN

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/MAPGMHYNIE4OLI3LLUPHBRTPBR \
  | 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: 601e661f0d4138e5a36b5d1e70c66f0c5a01af1c2c6a9506c737c3db77f41c2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b5d86d38c1e81f0b09722b34d00bc0d364dca071900ca2f06e3c49ac90e59f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-02-27T15:31:47Z",
    "title_canon_sha256": "1af1c9500918a8bc8d15d335891b397138ea5556ba91b76dc9c9a305e5562c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.6341",
    "kind": "arxiv",
    "version": 2
  }
}